Aux cable for car radio as it looks. How to make an AUX output for a car radio yourself and connect a cable to it? Necessary materials and tools

Many sound-reproducing devices (for example, radio tape recorders, stereos, CD / MP3 players, TVs) have a connector designed to supply external signals - the AUX input. In this article we will look at the practical use of this socket.

AUX line input

The amplitude of the signal applied to the line input varies in the range from 0.5 to 1 V. This signal level is produced by any music playback devices that have a connector. It is usually labeled as AUX OUT. The same signal level is applied to the headphones. Therefore, the headphone output can be connected to the AUX input.

Line input connection

The scope of the mentioned connector is quite wide. So, for example, if you want to listen to music from an MP3 player or smartphone (tablet) through powerful speakers, and not through headphones, you can connect your device to the AUX input of a music center or other similar device. An adapter cable is required for connection. On one side of the cable there should be a 3.5mm jack connector (headphone plug), and on the other side - a pair of tulip connectors. The cord itself must be a four-wire acoustic with an external copper braid. Such a cable can be bought in a store or made by hand. The jack connector can be cut off from non-working headphones or bought at a radio store. When purchasing connectors, you can choose their shape and design - from the cheapest (plastic) to the most expensive (gold-plated metal). When you have found all the plugs and wire, you can start assembling. We clean the insulation at the ends of the wire and solder the connectors to them. At the "jake" the central contacts are signal, and the outer one is a common wire. Tulip is exactly the same. Some devices have a headphone output under the “minijack” standard, in which case you need to solder the appropriate connector. The decoupling remains the same. After that, be sure to check the cable with a multimeter in the “dialing” mode to exclude incorrect connection.

Setting the AUX input

So the cord is ready, you can connect our player to the music center. We connect the cable to AUX and turn on the AUX IN mode on the playback device. For digital instruments, this is done through the menu, and for analog instruments, using a switch. It should be remembered that before starting playback on the player, it is necessary to reduce the volume level on the music center or other playback device. This is done so that the device does not “yell” to its fullest if a powerful signal is applied to the output channel.

Conclusion

According to this principle, you can connect various devices (laptops, netbooks, iPods, tablets, etc.) to devices that contain frequencies - stereos, TVs, home theaters, cassette players, etc. A good bundle is obtained when connecting CD / MP3 players and cassette recorders. The latter are used extremely rarely in the era of digital music, although they sometimes have much better characteristics. So such a bundle gives new life to analog technology.

Why do you need a line input (AUX IN)? It transmits analog sound from an FM or TV tuner, CD drive, MP3 player or mobile phone. In this case, the tape recorder itself works as a sound amplifier, and the source is not its cassette or disk, but the connected external device.Now all sorts of docking stations have become fashionable and popular.ipodam, iphone, which are ordinary ULF with speakers. But after all, an old car radio, tape recorder or music center will perfectly perform this function. And if it does not have a line input for weak external sources, it is not difficult to bring it out yourself. Moreover, everyone has plenty of such musical units.

We will not consider cases whereline outalready provided on the device board. Then wires or missing components are simply soldered (usually a couple of resistors and capacitors). Consider the option when the possibility of connecting an MP3 player to a tape recorder was not even planned.The easiest way is to connect to the volume control, but since modern radios have digital (push-button) sound level control, you can send signals directly to the amplifier input.

Here you need to disassemble the device and find a sound power amplifier in it. Most often, this is a small chip with a heatsink. In our case, when finalizing the CD radioAIWA CSD-TD20, it will be a stereo chip soldered directly onto the board with a heatsink above it.In other devices, it can be mounted on an aluminum cooler plate.

The brand of the microcircuit is unknown (which most often happens), so if you are too lazy of this device, in order to understand where the microcircuit has sound inputs, you can simply gently poke a screwdriver in turn on everything. Where it sounds or buzzes, these will be the entrances. We are looking for the right and left channel.

Solder a shielded stereo cable to them. Necessarily in a reliable screen, as there may be interference and background from the power transformer.

It is even better to solder the line outputs to the terminal decoupling capacitors in front of the amplifier chip. So it will be safer for the microcircuit, in case a direct current goes to the input or they are shorted.

Do not try, in the case of a cassette player, to feed sound from the player to the playback head. The signal from the magnetic head is very weak, so there is a sensitive amplifier behind the head. In addition, frequency correction is applied in the playback amplifier and its frequency response is very uneven. With a rise in low and peak at 10-12 kHz. For a magnetic head, it is necessary: to compensate for the drop in recoil at low frequencies, which is not acceptable for a linear input. So you need to crash after the reproduction amplifier and before the final amplifiers.

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Knowing what AUX is in a car radio, drivers will be able to expand the functionality of the system. The designation is located on the player or on the dashboard. The abbreviation AUX is the designation of the connector in the radio, which allows you to connect other sound sources.

What is this output for?

The Aux line output in the radio is required to connect a smartphone, tablet or mp3 player to the player. In this case, the sound will be transmitted through the car speakers.

In some cars, they are combined, and the car owner can connect the phone while answering the call. To do this, you can connect a microphone to the radio via AUX. Therefore, the panel on top of the Aux connector says "AUX IN".

In the operating state, a signal with an amplitude in the range of 0.5-1 V is applied to the output.

There is also an amplifier that transmits sound to the speakers.

Some drivers do not know what the input to the radio labeled AUX means. In this case, you can mix up 2 identical connectors. Below the output with the prefix "IN", there is a plug labeled "OUT".

AUX OUT - connector for sound output. Therefore, a wire is inserted into it to output music. This is what speakers are for. Unknowing motorists are faced with problems with sound output in the radio and do not know what Aux is. Therefore, if there are problems with the volume or a non-working player, they change it, but the problem may be that the device is connected incorrectly.

How to use

When an Aux connector is detected on the car radio, the driver tries to determine what it is, how to use this function. The system can be found in many devices that reproduce sound. However, older cassette players or older versions of CD players do not have a line out. But this does not mean that a car enthusiast will not be able to connect a player or smartphone to play their music on the speakers.

To start listening to music in the car, you will need to determine how the playback device is connected through the Aux, and start listening to music from other sources. If the radio has an AUX plug, then to start using you need a wire, where the jack size should be 3.5 mm. On the other side of the adapter there are several connectors for connecting an external device. If the corresponding output on the player is not found, then the owner of the car is able to make it himself. After connecting the playback device, you can listen to music.

How to enable AUX

If AUX was originally built into the car radio, then the system will need to unlock it. To turn on the Aux radio as a device that sends a signal to the speakers, you must put the player in standby mode. To do this, press the SRC button, then enter the menu using MENU. You will need to hold the button until the system is activated. In the menu, scroll with the right control knob to switch the Aux. The car radio display may show AUX ON/OFF, which means whether the input is on or off.

AUX or line-in is a connector through which an external audio source can be connected to the car. Such an abbreviation can be found on the car radio or directly on the vehicle dashboard. This device allows you to quickly connect an MP-3 player, phone, laptop or any other portable device to the car's speaker system. When connected, audio files from them will be directly broadcast to the car's built-in speakers.

The AUX connector is a small round hole with a diameter of 3.5 millimeters. It freely accepts a plug with the configuration of a figured metal rod, as for ordinary headphones.

In expensive cars, the AUX connector is mounted next to the cigarette lighter or radio, and is closed with an outer cover that prevents moisture and dust from getting inside the recess. The presence of an entrance saves the car owner from the need to equip the interior with a multifunctional radio tape recorder, and makes it possible to use not only the resources of the connected electronic media, but also play music from the Internet.

Why is it convenient?

The technical functions of conventional radio tape recorders are expanding significantly.
You can listen not only to your favorite music, but also broadcasts from virtual radio stations.
Additional connection of absolutely any external devices is possible.
No financial investment is required to update the built-in car audio systems.
Broadcasting sound through a phone connected to the AUX input will be no worse than the quality of the reproduced music from a flash drive or disk.

How to use the AUX input?

To connect to this type of line input, you must have a special adapter. One of its ends must end with an elongated plug.

The second side of the adapter must match the connector of the phone, smartphone, tablet or laptop. This small wire will allow you to connect your portable device to your car for seamless transfer of any audio files.

You can buy an adapter as an additional accessory in a store with automotive equipment or electronics. It also often comes factory-equipped with some devices.

DIY AUX input

If your car and the radio built into it do not have an AUX connector, then if you wish, you can install it yourself. In the absence of technical skills, you should order a service from a specialist at the service station.

To mount the AUX jack, you will need three small wires forty, fifty centimeters long with a small cross section. They will need to be soldered to the stereo output channels from the player to the main device. After that, the wires are brought out and a socket for an audio connector with three pins is attached to them. The AUX connector itself is fixed in a convenient place for use on the dashboard or directly on the radio.

The topic about AUX cables will be of interest to those who do not have a USB connector in their regular car radio for reading music from flash drives. All this can be done with your own hands for a car. CDs are no longer fun to use. The disc recorded everything, and it lies around until it is rubbed and you will not use it in any other homemade products)))).

DIY for cars
In the current age of technology, you can store music anywhere you want, from usb drives to mp3 players, ipads, mobile phones and other mobile devices that allow you to store data. They can then be used as sound sources if there is an AUX input on the car radio and there is no usb port.

On the Internet, they ask and write a lot about this: some say that this is a port for reading from a storage medium (usb) and that the radio tape recorder reads and plays music, others say that there is an audio input for connecting external music sources.

What is an AUX port in car radios?

This is a port for connecting external music sources to listen to through the car's audio system. Such external sources, as I wrote above, can be mp3 players, phones, iPads, tablets and computers (laptops). In other words, devices that have a headphone output.

3.5 mm jack plug diagram
There are 2 types of plugs: Mono jack and Stereo jack

Jack 3,5 mm Mono-jack: 1. Signal (microphone), 2. Ground.
Mono jack - usually goes for microphones.

Stereo jack (headphones, speakers): 1. Signal (left), 2. Ground, 3. Signal (right)
In my car, I have an AUX port of standard sizes Jack 3.5 mm (jack for water plug from standard headphones)

The task was to make an AUX cable for the car radio and my HTC phone. AUX cable with two identical plugs on both ends "Jack 3.5 mm"

Such cables are sold on the Internet and probably in radio shops. Their cost is from 70 rubles and more. I wanted high-quality sound of music in the car. I didn’t particularly want to order via the Internet and go to radio shops.

On hand were two faulty computer headphones. I took wires with stereo connectors from them, because these are what I need.

He removed the braid from one wire and the other, did everything with his own hands.

There are 3 wires: white, blue and green.

White - ground
Green and blue - right and left (headphones or speakers)

I twisted the corresponding wires blue with blue, green with green, white with white (silver) without any ringing.

I went to the garage and checked - it works. Then I just insulated everything with adhesive tape (did not solder at 11 am), checked it again - the sound is excellent.