How to connect your phone to the radio via USB, AUX, Bluetooth

Before the advent of Bluetooth, auxiliary jacks, USB and others, listening to music in the car was simple. For the better part of a century, the only choice in car audio was between AM and FM radio. Back then, portable media, small and rugged for use in cars, came in eight-track form and nothing was the same.

Compact cassettes soon took over the market, followed by CDs, and now digital media in one form or another has left everything else in the dust. But even if you agree with the idea of ​​listening to music from your phone in the car, the question remains: is Bluetooth better than a physical aux connection?

Where did the auxiliary connectors come from?

Car stereos have supported auxiliary jacks for a long time, so it's tempting to ditch the outdated technology. The 3.5mm auxiliary port on the front of the car stereo is based on technology that has not changed since 1960.

The AUX jacks on car radios are analog connections that have been called telephone jacks, stereo jacks, headphone jacks, and other names over the years. The same basic type of plug was used to connect everything from phones, to electric guitars and microphones, to headphones and everything in between.

The technical term for this type of aux connection is TRS or TRRS, which stand for "Tip Ring Sleeve" and "Tip Ring Sleeve" respectively. These names refer to the physical metal contacts present on the specific auxiliary input.

Most car audio systems include a TRS connection, which is designed to make it easy to send an analog audio signal from a phone or other audio output to the car's head unit, much like connecting a set of headphones.

There are some problems with this type of audio connection, and when running an analog signal for tiny headphones into a stereo system you are likely to encounter some music quality issues. Using a line-out instead of headphones or speakers, or using a digital USB connection instead of an analog auxiliary connection are both ways to solve this problem.

However, simply connecting the headphone jack of your phone or MP3 player to the auxiliary input of your stereo system is an option that works for most users. Because the connection is analog, there is no compression associated with moving the audio signal from the phone to the stereo. So when the DAC in a typical smartphone isn't optimized for the type of use that a stereo DAC is, you might not even notice the difference.

JVC radio pinout diagram and instructions on how to connect (set up) Jivisi

One of the popular manufacturers of car radios is JVC. Car radios of this brand have long been loved by motorists. The advantages of radio tape recorders from this manufacturer are:

Before connecting the radio, you need to check the conformity of the box. There are 2 standards:

In the first case, a single-block version is used or it is also called 1DIN, in the second - a double-block or 2DIN.

Where did Bluetooth come from?

When the underlying technologies associated with the aux input signal in a stereo system were originally intended to carry a different type of analog audio signal in the 1960s. Bluetooth was recently invented as a way to create secure wireless local area networks.

The idea behind Bluetooth was to offer a fast, wireless alternative to RS-232 serial port connectivity for personal computers. The serial port was replaced by USB by the late 1990s, but Bluetooth eventually came along as well.

Although Bluetooth is used in many different ways today, the way most people interact with technology on a daily basis is through their phones. Because Bluetooth makes it possible to create secure, local and wireless networks. The technology is more used when connecting wireless headsets to phones, as opposed to aux.

Wireless headsets and speakerphones are the main vector through which Bluetooth arrived in cars. Since so many phones already had Bluetooth built-in, and so many people were already using wireless headsets, automakers began offering built-in Bluetooth hands-free functionality.

Since Bluetooth also includes a profile for music streaming, it's natural that stereo manufacturers will start offering this option as well. Thanks to the Bluetooth wireless network, it is possible to transmit audio, video and even control radio applications directly from your phone.

How to make AUX

Before you make an AUX port in the radio yourself, you will need to purchase a connecting cable and plug. It is allowed to use spare parts from old headphones; To ensure the quality of work, it is recommended to check the condition of the metal cores and insulator with a test device. The plug consists of 3 contact ring plates separated by a plastic insulator. The base is connected to a common core, the upper sections are responsible for the operation of the left and right audio channels.

A set of tools and materials that will be required when connecting AUX to the radio:

• a set of screwdrivers (the type of blade depends on the car manufacturer);
• Soldering Station;
• test device;
• contact crimping tool;
• insulating tape or special shrink tubes;
• set of cables and connectors,

CD on the radio

Most CD drives are equipped with a controller for switching external equipment, but the connector is not located on the outside of the case. This was done for reasons of equipment unification, which was supplemented with options depending on the modification and cost of the car. The user can independently modify the player by moving the connector to a convenient location.

To make an AUX input in a car radio, you will need:

1. Remove the decorative plastic frames installed on the central part of the instrument panel. The elements are held in place by latches or additional screws (depending on the vehicle manufacturer). On some machines, it will be necessary to remove the central air ducts of the heating and ventilation system.
2. Remove the head unit, which is attached to the metal frame with screws (phillips head or TORX type). Disconnect the patch cables connected to the connectors on the rear wall of the case.
3. Find the additional block installed on the back of the radio. You can purchase patch plugs at a parts store or make your own using parts from a computer's power supply or hard drive. The connection diagram between the block and the connector depends on the modification of the player. To make the unit work, you will need to find the factory instructions or connect the wires experimentally.
4. The connector has two outputs that allow you to switch the operating mode of the AUX port. The contacts must be closed with a conductor or a special jumper.
5. Since it is impossible to connect the AUX to the radio due to its design, the plug is placed in a pocket on the center console or in the glove box.
6. Connect an external device directly or via an intermediate AUX cable for the car radio, and then test the joint operation of the nodes.

On the standard radio

To install the AUX port in the standard radio, you will need to dismantle the device. To access the mounting points, remove the plastic covers located on the center console. To remove elements secured with spring or plastic clips, it is recommended to use a spatula. The tool does not damage the outer surface and end edges of decorative elements. The head unit is held in the mounting shaft with screws; on some machines an additional bolt with a hexagonal head is used.

After dismantling the radio, it is necessary to remove the outer metal panels of the case, providing access to the circuit boards with electronic components. To install AUX in standard devices, you will need to solder the cables to the standard points on the circuit board, designated as LCH/RCH (for acoustic channels) and GND (common wire or ground). To facilitate access to elements on some products, you will need to remove the CD drive and some additional electronic components (depending on the head unit model).

The soldered wires are carefully removed from the radio casing; dismantled elements are installed in their original places. An additional tube is used to protect the insulation from damage. The plug is routed through the inside of the instrument panel into the glove box or into the ashtray cavity. It is recommended to lay the harness parallel to the vehicle's standard electrical wiring.

How to solder on a cassette player

Standard cassette head units are kept in cars as an original accessory that emphasizes the condition of the vehicle. The design of the equipment allows for modification and installation of the AUX connector; the user needs to think in advance about the location of the plug or socket. Before starting work, you need to purchase a connecting cable and remove the old connection plug from the headphones.

The sequence of steps for installing an AUX port in a cassette recorder with your own hands is as follows:

1. Before connecting the AUX to the radio, you will need to remove the player from the mounting socket, and then disconnect the patch cables and antenna.
2. Remove the screws securing the top of the head unit housing. On some products, additional spring latches are used to hold the lid.
3. To access the volume control potentiometer, you will need to dismantle the tape drive assembly. The assembly is removed carefully so as not to damage the structural elements.
4. 3 additional cables are soldered to the volume control, equipped with 3 outputs. The cords provide connection to the common bus and audio channels. The location of the outputs is determined by the electrical diagram of the equipment or by a test device.
5. Connect the cables into a common bundle that is insulated. Install the plug and solder the contacts, ensuring the channels are insulated.
6. Remove the harness from the radio housing, and then route it inside the instrument panel to the location where the connector is installed.
7. Reinstall the dismantled elements and check the functionality of the structure.

What is better for the car, AUX or Bluetooth: through which connection is music more accurate?

The question of whether wireless technology is better than aux for listening to music in the car comes down to two issues: sound quality and convenience. Based on this question, it is easier to connect the phone to the stereo system through an additional connection. Otherwise, just connect the cable and the music will start playing.

However, Bluetooth is more difficult to set up. To connect a phone or other type of MP3 player to your car stereo, you need to set it as "recognizable" and then use another one to find the first one.

If the devices don't pair, you may have to repeat the process until it works. Once the phone and car stereo find each other, you will have to enter a short passcode that will allow the two devices to connect.

A significant advantage of Bluetooth in terms of convenience is that, barring unforeseen circumstances, there is no need to pair devices again. When the phone comes into range of the stereo system and both are turned on, an automatic connection will occur. It's definitely more convenient than physically plugging in an extra connection every time you get into the car.

Are there any disadvantages to connections?

The main disadvantage of using wireless technology to listen to music in a car is the sound quality. Although it is more convenient in the long run, the music quality will be worse with Bluetooth than with an additional aux connection.

The reason why music over Bluetooth isn't as good is because of the way devices use technology to transmit sound. Instead of sending an uncompressed analog signal like a physical aux connection, sending music over a wireless Bluetooth connection involves compressing the audio at one end and then expanding it to the other device.

Because Bluetooth audio transmission involves a form of lossy compression, some level of fidelity to the music is lost when you use this type of connection. It is possible to transfer data via Bluetooth as complete files without losing anything, but this goes against the scenario of this type of use case.

The Hidden Advantage of Bluetooth Over Auxiliary

Even if a wireless network transmits a low level of audio quality that you may personally find, there is one reason why you might want to choose a wireless connection after testing the physical connection.

When you connect your phone to a Bluetooth stereo or compatible OEM entertainment system, the purpose is usually to listen to music. However, creating this type of connection also gives you access to hands-free calling without a separate connection or connecting a wireless headset.

Almost always, connecting your phone to your car stereo via a physical auxiliary connection will eliminate the hands-free feature. This is because phones, if available, will automatically want to use a wired connection to handle incoming or outgoing calls.

Of course, this will usually lead to a situation where you can hear the person on the other end of the call through the car speakers, but they cannot hear you.

Using Bluetooth to stream music is a good way to avoid this problem, since phones and car stereos can usually switch from a music streaming profile to a communication profile during a call.

Does Aux sound better?

In practice, you may not notice the difference in music quality between Bluetooth and AUX. This is mainly due to the inherent shortcomings in car audio systems. If you have a car audio system from the factory, you are probably less likely to notice the difference. You'll probably also be unlikely to notice the difference between the two if you drive a car that gets a lot of interference from road noise and other external sources.

The point is that an auxiliary connection will always provide better sound than a wireless network, and a digital connection such as USB provides even better quality in some circumstances. However, the difference between Bluetooth and aux is a matter of personal preference, if losing a little in terms of music fidelity is worth not having to plug in a physical aux cable every time you get into the car.

Today we will talk about ways to connect a mobile phone, iPhone and other devices to a car radio. Such popular methods as USB, Bluetooth, AUX and others will be considered.

Music in the car interior is one of the most common means of increasing comfort. Nowadays, you probably won’t see a car that doesn’t even have a couple of speakers.

All car manufacturers currently equip their models with standard audio systems, or at least provide audio preparation, giving the car owner the choice of installing a radio. And it seems that everything is simple - you installed the necessary equipment on the car, if it did not come with the car, and you enjoy the music.

But this hides one problem - technology is constantly improving, music carriers are changing. For example, just 15 years ago, radio tape recorders that read CDs were the most modern, but now they are hopelessly outdated and have given way to devices capable of reading music files from various types of memory cards and other media, one of which is a mobile phone or smartphone.

And if the car radio was purchased separately and installed independently, then you can periodically change it to a more modern model that can read music from different media, but this will not work with standard audio systems.

But you always have the opportunity to connect the same smartphone or another media file carrier and enjoy your favorite music. We'll talk about this next.

Manufacturing Guide

We’ve figured out what AUX is, now let’s move on to the issue of manufacturing the device. To make AUX into a standard radio, you will need to perform certain steps, having prepared all the necessary materials in advance. In principle, the procedure for connecting this output is not particularly complicated, but in order to carry out all the steps correctly, you must follow certain nuances, which you will learn about later. If you have any doubts about whether you will do everything correctly, we recommend that you seek help from a qualified electrician.

Basic recommendations, as well as an approximate diagram of connecting wires to the radio board, are shown in the video from the SRV channel below.

Tools and materials

So, if you want to always be able to connect an MP3 player via cable through your car radio, you will need to equip the appropriate input. To perform all the steps correctly, prepare the necessary input plug and cable in advance. In principle, all this can be taken from old headphones; in this case, it is very important that their input cable is intact. You can make sure that the input cable is intact by “ringing” it, using a multimeter for this.

Regarding the input plug, there are certain points to consider. For example, the usual standard plug from any audio headphones is conditionally divided into several parts. The widest part of the plug, located at the plastic base, belongs to the common cable. This cable is painted in a common color, and the conductors of the two channels - left and right - are marked in green and red. This means that the two parts that remain relate specifically to the playback channels.

In principle, there is nothing complicated to build an AUX input with your own hands. You only need to prepare a certain set of devices:

• the headphone plug itself with the cable;
• soldering iron with consumables;
• multimeter

Plug with cable

Soldering iron

Multimeter for dialing

Stages

So, when all the necessary tools and materials have been collected, you can begin making an input designed to connect the player through a car radio.

To do everything correctly and so that you can easily connect any mobile device, including a player, via a cable to the car radio, follow these steps:

1. First, remove all media from your car radio. Once everything is removed, you will need to remove the audio system. To do this, you will need to remove the decorative plastic trim, which is usually secured with several plastic clips. As a rule, car enthusiasts do not have problems at this step. But if your car radio is obsolete (or rather, “ancient”), there is a chance that you will also need to unscrew a few bolts. One way or another, this stage usually does not cause difficulties, so be guided by the situation.
2. After the car radio is removed, you will need to unscrew several screws located on the ventilation panel. This panel will subsequently need to be lifted up a little - this action will allow you to get rid of interference in the future.
3. We can say that the preparatory stage of producing the input for connecting the player to the radio via a cable has been completed. Now you need to connect all the cables that you took from the old headphones along with the plug to the PCA output, that is, the tulip.
4. To properly solder all the cables, you must follow a certain order. In particular, the common cable should be soldered to the metal base of the connector. Conductors that are used as channels should be soldered to the middle pins.
5. After you have soldered all the necessary wires using a soldering iron, you need to test them; for this, as mentioned earlier, a multimeter is used. If there are problems, the procedure must be repeated.
6. When you are sure that everything is done correctly, the soldered wires along with the plug will need to be brought out. So that they are located in the cabin and a player or other device can be connected to them. In this case, you need to be based on your preferences, as well as the design features of the center console of your vehicle. After all, you need to make sure that connecting and using a player or mobile gadget via a cable does not cause discomfort or difficulty. As practice shows, the most optimal solution in this case would be to lead the cable into the ashtray, of course, if it is not used for its intended purpose. You need to make sure in advance that the cable through which you will connect mobile gadgets or players is long enough. Otherwise, the connected device will simply hang under the radio, and this, you see, is not very aesthetically pleasing. More detailed instructions for connecting this output are given in the video below (the author of the video is comPlushki Repairs and Arduino).

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Once you have been able to connect the AUX output for your player or phone, you need to check if you did everything correctly. To diagnose the result, first of all, you should reduce the sound level on the head unit, that is, the audio system, as much as possible. This is done because most mobile gadgets, after connecting to the head unit, begin to make noise, producing an unpleasant sound. So, you need to connect a mobile device or player to the AUX output brought into the vehicle interior, after which any audio recording is turned on.

You need to adjust the sound on the head unit in advance. If you were able to connect and solder everything correctly, audio recordings from the player or mobile device will play in the vehicle speakers. If you are not satisfied with the audio quality, try changing the playback settings on your head unit as well as your mobile phone. Sometimes all you need to do is change the equalizer settings to get the best sound.

The above instructions are relevant for those motorists who decided to do everything on their own and know how to hold a soldering iron in their hands. If this is your first time encountering the need for soldering, then it is quite possible that you will not be able to achieve the desired result. If this option does not suit you, you can simply go to a car audio store, purchase the appropriate adapter and connect it. This option is less labor-intensive than the one described above, but it requires large financial investments.

Connection methods

Nowadays, many ways have been invented to connect a mobile phone to a car radio. In this case, the latter acts only as a sound amplifier.

In general, this connection is very convenient and allows you to listen to your favorite music, which every music lover has on their smartphone, even on an old car cassette recorder, without making any design changes to the radio.

Below we will look at the most popular methods used to connect a mobile phone or MP-3 player to an audio system. They are all different and depend mainly on the design features of the radios themselves.

Making aux for a cassette player

Many will say that there are no such car radios left in nature. But this is not true. Of course, such rarities are not comparable to the quality of players from brands such as Bose, however, there are still connoisseurs of such outdated devices. And believe me, they also want to listen to their favorite tunes from their smartphone or MP3 player through an old cassette player in their car. And to be happy they need:

We remove the radio from the niche by unscrewing the mounting bolts. Unscrew the bolts holding the device cover. By removing the cover of the radio, we get access to the tape drive mechanism, which is secured with metal latches. By bending the latches, we remove the mechanism, thereby gaining access to the volume control.

We take it out and solder three common wires to it, for the left stereo channel and for the right stereo channel. We put the wires into a heat-shrinkable channel and assemble the car radio. Having installed the player in its place, we bring the wire into the interior or into the glove compartment and attach a 3.5 mm plug to it using soldering.

As we can see, you can install an aux output on any radio. Much, of course, depends on the manufacturer of the product and, of course, on the design components. In modern models from companies such as Bose, there is no need to think about how to connect any mobile device via aux. But unfortunately, there are still a lot of devices on the radio electronics market that require serious improvements.

We connect via USB.

So, one of the most common methods is to use a USB connector. Not a single modern radio is produced without a standard USB output on the panel.

This output allows you to use a regular computer flash card as a music storage medium. But you can easily connect your mobile phone to it via a computer connection cord.

This cord has a standard USB plug at one end, and an output for connecting to a smartphone at the other.

Simple radio tape recorders are not able to integrate with the phone, and in this case the latter acts only as a storage medium, that is, as a regular flash drive.

To play music, just connect the cord to the smartphone and to the output of the radio, and then in the phone settings in the “USB connection” item, select “Data transfer”, after which the radio will be able to read all music files. In this case, music files will be managed only from the radio.

More modern radios integrate with your phone, allowing you to control music from both devices. In this case, it is possible to launch applications on a smartphone, for example, some special player, and in this case it will act as a regular amplifier.

Installing an aux input on the CD radio

In fact, most radio tape recorders are equipped with aux connectors, but for some reason the manufacturer did not consider it necessary to display them on the front panel. To solve the problem of outputting an aux output on a CD radio, a car enthusiast will need a certain number of consumables and tools:

• medium Phillips screwdriver;
• knife;
• insulating tape;
• special keys to get the radio;
• USB cable from the computer controller;
• jumper from a computer hard drive;
• a small piece of cable with a 3.5 mm plug.

Using a knife, carefully remove the decorative plate by prying it by the edge. Using a screwdriver, unscrew the two screws that secure the grille and lift it up. Using special keys, remove the radio.

AUX connection

Having pulled out the radio, we see a white rectangular connector on the back of the case. You need to connect a USB plug with a cable and a jumper to it. The computer controller cable consists of three cores: the left channel, the right channel and the screen. We connect the wires of the left and right channels to a two-core cable with a 3.5 plug and insulate it well using insulating material. We install the car radio in place. We bring the cable with the plug into the car interior.

What is Bluetooth, AUX and USB

Budget car radios have a limited list of functions. Usually they do not have special connectors that allow you to connect an external device and listen to music. To remedy the situation, you can purchase an adapter.

What are Bluetooth, AUX and USB. At their core, these are technologies created to transfer data from one device to another.

Bluetooth is different in that it allows you to connect gadgets by wirelessly transmitting information.

Each method of transferring data from a phone to a car radio has its own technological features.

For a successful connection, the following technical capabilities are required:

1. adapters;
2. connectors;
3. location of the smartphone within reach for transmission.

How to listen to music in the car via Bluetooth

The most profitable option for connecting a smartphone to a car radio via Bluetooth. The technology allows you to use the phone's options in full. The system allows you to synchronize the operation of the radio and audio transmitter.

The connection method is also advantageous because while using the phone, you can communicate remotely without using your hands. To make the connection, you can use the instructions from the car radio.

Such a device always has a manual in Russian, where all the steps are described in detail with pictures:

1. The required mode for receiving information is switched on on the sound-reproducing device;
2. Select Bluetooth from the phone menu;
3. A list of available devices appears on the screen, the one you need is selected from the list, and the connection is made.

One glance at the phone screen is enough to control the correct functioning of the connection. The Bluetooth icon should glow white or blue. If there is no connection, it remains gray.

This method of transmitting information is advantageous because there are no wires. Several devices can connect to one phone and receive data at once.

The only disadvantage of Bluetooth transmission is that it quickly drains the phone's battery. After a short period of time it will have to be recharged; if there is no car charger in the car, the driver risks being left without communication.

Video connection instructions

How to properly connect your phone via Bluetooth in this video:

How to find a fault

A car radio, like other equipment, can fail over time and have various malfunctions. To understand how to find a fault in JVC RC and other radios, you need to know that there may be several main reasons:

Only a professional can perform high-quality car radio repairs. Mechanical faults can be eliminated yourself by cleaning the radio. But if you have never had such skills, then it is better to seek help from a professional.

If it doesn't turn on

When the radio does not turn on, the reason may be due to lack of power. It is worth checking contact CN701, which should have a voltage of 14 V.

If there is no voltage, replace the transistors or zener diode.

Another reason when turning on does not occur may be the lack of a power signal.

If the buttons don't work

Buttons can break due to mechanical damage or simply become clogged with dirt or dust. In the second case, cleaning the radio will help. If the buttons break, you may have to look for new buttons on car enthusiast forums, in services, or when buying old equipment second-hand. It will be easier to replace the panel, but it all depends on the situation and model of the radio.

Many sellers have long given up replacing parts and, if a part breaks down, they offer to replace the entire mechanism or purchase a new device. Specialized repair shops can help out by buying up old equipment for spare parts and using them to carry out repairs. The main thing is that the cost of such repairs should not be close to the cost of a new device.

Source

Connecting a smartphone using AUX

This type of connection allows you to use the car radio as an amplifier, while the music is played back by the phone.

Audio information can be obtained:

1. From the Internet online;
2. On the radio;
3. From recorded and saved files.

To make the connection, you only need an AUX adapter with the appropriate connector.

This type of connection between the telephone and the car radio is not beneficial:

1. The energy reserve on your smartphone quickly disappears;
2. The phone cannot be recharged while playing music via the AUX connection;
3. Additional connected wires in the car create inconvenience.

1. Does not require complex settings, universal;
2. The selection of musical compositions is made from a mobile device;
3. The ability to create a playlist to your own taste;
4. Ease of Management;
5. The ability to organize a speakerphone through which everyone present in the car can communicate;
6. Works on the simplest devices.

During a call on the phone, the transfer of music to the radio stops. Some consider this an inconvenience, while others consider it a plus, since loud sounds do not interfere with hearing the interlocutor.

Video instructions for connecting two devices

This video describes in detail how to connect two devices to listen to audio materials:

What is AUX input and where is it used?

Line input, or as it is now called “AUX,” has long appeared in household audio equipment. A home amplifier, depending on the model, has from one to several of these.

4 line inputs (AUX) are clearly visible in the lower left corner

Home audio equipment is still used according to the same principle, connecting it to a computer. To use this feature in your car, you will have to slightly modify the standard radio.

Connecting a smartphone to the radio can lead to an accident if someone suddenly calls it.

Pairing your phone and radio via USB

The USB adapter is a universal tool; it can be used to connect various types of devices. To transfer audio from a phone to a car radio, certain connectors (sockets) are required through which the adapter is connected.

The USB connection allows you to control the phone through the radio and in the opposite direction.

While data is being transferred to the playback device, all other mobile phone applications remain available and can be used.

To connect via an adapter, you do not need to perform complex manipulations or additional settings. Devices begin to “see” and perceive each other automatically. Some models ask the administrator for access permission, then no difficulties arise during operation.

The positive aspects of using a USB connection to connect a phone:

1. The phone's battery does not drain as quickly as when connected via Bluetooth.
2. The mobile phone requires recharging less often, since while transmitting information to the radio through the adapter, its battery is simultaneously recharged.
3. The phone can be controlled through the radio screen, and the playback device through a mobile phone.
4. During the transfer of information, all other applications and functions of the phone remain available and can be used. This is especially valuable when you need to make a call or use the navigator in your smartphone.

There are not many disadvantages to this method:

1. A constantly connected and hanging wire can get in the way;
2. Old radios do not see “audio files” in new phone models or cannot play them.

Video manual for connecting devices

When the user does not understand exactly how and into which socket the USB cable should be connected, they should study the manual, which clearly describes all the actions that need to be performed.

The video instructions describe how to connect your phone to the car radio:

What problems can you encounter?

Inexpensive car radios are rarely equipped with the devices necessary to connect to a telephone. Some models can be equipped with an adapter that allows you to receive data transmitted from your phone.

When transmitting data to the car radio via Bluetooth, AUX, the phone battery drains quickly. After a short period of time it will have to be recharged.

What can be concluded? Connecting a phone to a radio is possible in three available ways, however, despite the simplicity of this process, not every user is able to connect two devices without watching video materials and studying instructions.

Required materials and tools

To connect the AUX output to the radio, you will need a wire and a plug. You can buy them at a radio store, but the easiest way is to borrow a wire with a plug already connected from old headphones. The wire should not be damaged, so in addition to a visual inspection, it would not be superfluous to check it with a multimeter.

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In addition to a wire with a plug and a multimeter to equip the radio with an AUX output, you will also need:

• flat and Phillips screwdrivers;
• low-power soldering iron with a soldering kit (solders, flux and magnifying glass);
• knife;
• insulating tape and heat shrink tube;
• a set of standard keys for removing the radio;
• if necessary, a set of heads for small screwdrivers (if the radio is attached with screws).