Car Sound System Wiring Diagram(Speaker, Amplifier, Receiver)



Hey, in this article we are going to see the car sound system wiring diagram for both the stereo system and subwoofer system. This article will help you to understand how the amplifiers and speakers are connected in a car. Proper placement and connection are very important if you want to get an amazing listening experience. So when you install, repair, or replace the music system in a car all the color codes, and connections should be done properly. Most of the car uses a simple stereo music player where all the speakers are connected directly to this music player. These stereo music players are inbuilt with amplifiers and give a low power output. That is why stereo music players are used with light and low-power speakers where you will get only a moderate listening experience. On the other hand, the modern sound system uses a separate music player or receiver, a separate amplifier for each speaker, and subwoofers. Here, you will get an amazing listening experience including all tones and bass.


Car Stereo Sound System Wiring Diagram


Here, you can see the wiring diagram of stereo system with color codes.

Car Stereo Sound System Wiring Diagram


As we know that the stereo system is a car that has a stereo music player and speakers connected to it. Basically, all the wires are brought outside to connect the speakers and power supply. So, it is very important to have proper knowledge of color coding with respect to its function. So, first of all, let's see the function of each color wire,

Wire Color

Function

Red

Positive of Power Supply through ignition key

Black

Negative of Power Supply

Yellow

Constant Positive Power Supply from the battery

Blue

Antenna Power

Blue/White

Amplifier turn wire(remote)

Green

Positive for Left Rear Speaker

Green/Black

Negative for the Left Rear Speaker

Purple

Positive for the Right Rear Speaker

Purple/Black

Negative for the Right Rear Speaker

White

Positive for the Left Front Speaker

White/Black

Negative for the left front speaker

Gray

Positive for Right Front Speaker

Gray/Black

Negative for Right Front Speaker



Connection Description
  • The black wire or negative wire is connected directly to the metal chassis ground.
  • The yellow wire is connected to the positive terminal of the battery through a fuse connected in series.
  • The red wire is connected to the accessories terminal of the ignition key.
  • The green and green/black wires are connected to the left-side rear speaker.
  • The purple and purple/black wire is connected to the right-side rear speaker.
  • The white and white black wire is connected to the left side front speaker.
  • The gray and gray/black wire is connected to the right side front speaker.

Car Sound System Wiring Diagram with Amplifier, Subwoofer


In the previous section, we have seen a simple sound system with a music player but here we are going to see the wiring diagram of a modern sound system with individual amplifiers and subwoofer.

Car Sound System Wiring Diagram and connection with amplifier, subwoofer



Here, a four-channel amplifier is used to connect the satellite speakers. It works with medium and high-frequency audio signals such as vocal and tone. This is also basically a stereo amplifier. Another amplifier is used to drive the subwoofer. It works with only a low-frequency audio signal such as bass.

You can see in the above diagram that neutral wires from both amplifiers are connected to the metal chassis ground through a neutral block. And positive wire from each amplifier is connected to the positive terminal of the battery through a fuse. Also, you can see a capacitor is connected in parallel with the subwoofer amplifier.

The remote on the wire from the music player or receiver is to be connected to both amplifiers, so the amplifiers will be turned on automatically when the music player is turned on. Also, the amplifiers are connected to the music player through RCA cables.


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Car Sound System Wiring Diagram(Speaker, Amplifier, Receiver) Car Sound System Wiring Diagram(Speaker, Amplifier, Receiver) Reviewed by Author on May 25, 2022 Rating: 5
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