Repair 7

How to Repair a Car Audio Amp

There are several reasons why your car audio amplifier would stop working. Essentially, the majority of the problems are with the amplifier failing to turn on and off. Due to the amount of wires associated with an in-car amp, it can be a trial-and-error process of trying to identify and repair the problem with your amplifier.

Instructions

1

Locate the red power wire on the left side of the amplifier and connect one end of the voltmeter to it. If the amplifier is working and recognizes a full connection, it will power on. If it doesnt power on, then the problem lies with the wiring of the amplifier.

2

Find the black wire at the back of the amplifier labeled "Ground." This wire should be connected to a piece of exposed material, which will create the full circuit that the amplifier needs to work. Apply some electrical tape to the end of the wire and stick to a piece of exposed metal if the wire isnt connected.

3

Find the fuse in the fuse terminal on the left of the engine. Unplug the white fuse and replace it with a new one. If the fuse is blown then no power is being fed to the amplifier or in-car audio.

4

Apply electrical tape to each wire coming out of the back of the amplifier. Each wire coming out of the amplifier is partially exposed to allow connections to the fuse terminal. However, it can also cause electrical shorts. Applying electrical tape will stop this. The connection to the fuse terminal wont be affected.