How to connect Audi A3 car radio?
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With a suitable power supply, you can connect your car radio to a 120V or even 220V household socket, but you cannot connect the audi a3 8p car radio directly to a household socket. However, you cannot plug the car radio directly into an electrical outlet. However, there are some things you need to know to make sure you don't get a headache or possibly damage your 406 2 DIN car stereo.
Does a car radio work with alternating current or direct current?
The Audi a3 8p car stereo socket uses direct current (DC) to power its electronic components, while home electronics uses higher voltage alternating current (AC). Indeed, the blaupunkt 2 DIN car radio can operate on DC voltages up to approximately 11 volts, typically 12 to 14.4 volts when the vehicle engine is running.
The Audi a3 8p car radio uses DC because the car uses a DC battery to start and power the engine. When the engine is running, the alternator produces alternating current, which is then converted to direct current to charge the battery. Batteries store direct current, not alternating current.
What is the voltage used by household outlets?
If you are in France and other countries, a household electrical outlet provides approximately 120 V (volts or "V") of alternating current. In other countries the voltage is even higher, 220 V AC. Trying to connect a DC device to AC is extremely dangerous, in fact an audi a3 8p car stereo could even explode or catch fire when plugged in.
You need a power supply that can safely reduce the high voltage of a household AC outlet below the DC voltage that a GPS car stereo can use.
Also read: How to change Audi A3 car radio?
How many amps does a car radio draw?
The good news is that unlike car amps, Amazon 2 DIN car stereos only draw a few amps. Typical car stereos (depending on their design, features, etc.) draw around 2-5 amps at full power.
What is the 12V accessory wire on a car stereo?
An example of car radio harness power color marked.
The car audio has 3 power cables that must be connected to work
For 99% of audi a3 8p car radio connections, the 12V accessory wire is the red signal wire that triggers the ignition of the electronics. It is usually connected to the accessory wire of the vehicle's ignition switch to turn on and off with the switch.
It is necessary to plug it in to power the car radio. When the accessory cable of the Bluetooth car audio loses power, it turns off and goes into low power mode.
Connecting the power and ground of the car radio
To connect to power when connecting to audi a3 8p car stereo, you need to do the following:
Grounding: Connect the ground wire (black wire) of the car stereo to the output (-) terminal of the power supply.
Mains supply: Connect the +12V wire (usually the yellow wire) of the car radio battery to the (+) output of the power supply.
Turn on the radio: you can do this by connecting the radio's accessory wire (usually the red wire) to the +12V battery wire, or you can use a switch in between.
If you connect the accessory wire to the yellow wire (battery power), you can use the on/off control to turn off the car stereo. However, even though it is easy, it comes at a price.
Disconnecting power from the 12V battery cable means the device will lose its radio tuner settings, audio settings and any other settings you made when plugging in the audi a3 8p car stereo. As an option, it's a good idea to use a switch to connect the accessory wire as an on/off control. In this case, keep the power supply turned on.
Another solution is to simply turn the radio on/off using the power button and leave it on. In either case, when the radio is turned off, it goes into low power mode and draws less than 0.5 amps.
Connecting the Speaker Wiring
Audi a3 8p car stereo connections generally use standard wire colors for speaker connections. As with thread colors, not all brands follow these standard colors, so be sure to check first.
Keep in mind that car stereos cannot handle speaker impedances (speaker loads measured in ohms) below 4 ohms. However, you can use 8 ohm speakers for your stereo, but you'll only get half the power rating.
How to connect car radio wires correctly?
When connecting your audi a3 8p car radio, you have several options for correctly connecting the wires. Here are a few:
Connecting Wires Using Tape: Use Tape Method
Example of wrapping and wrapping speaker wire extended with tape.
Although this method is easy to do and inexpensive (especially if you don't have a lot of tools), it's the least reliable way to wire speakers or car stereos.
Connecting wires using crimp connectors: use connectors such as crimp ("butt") connectors or wire nuts
This is one of the most reliable methods of connecting wires for the audi a3 8p car radio connection. You will need one or more tools to strip your wire and crimp the connectors.
Connect the wires by soldering: how to solder the wires of the car radio
Cut and strip the wires (bare wire at least 1/2" long is required).
Hold the ends to form an "X" with the threads pointing in opposite directions.
Hold both ends and twist each end tightly around the other until they are completely wrapped around each other.
Once the soldering iron is hot, use the tip to apply the heat to the wires. Once it's hot (usually within seconds), apply solder so that it flows completely into the wires.
Twist the wire to the other side and apply solder until the entire wire is completely saturated with solder
Allow the wire to cool for a few moments
Remove 2 small pieces of electrical tape. Starting at the insulation and working at an angle, wrap the tape tightly until it is completely covered.
It is very important to completely cover the wires once the audi a3 8p car radio connection has been made. This helps prevent adjacent wires from touching each other and causing shorts that could permanently damage the radio output stage.
How long does it take to properly solder a speaker wire?
In total, it takes about 30 minutes to solder a complete set of power and speaker wires for a Peugeot 2 DIN 207 car radio, less time if only the power ends are connected.
This article on How to Connect Audi A3 Car Radio is now finished. We hope it has you more. Do not hesitate to let us know in the comments.
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