How to Fix a Blown Car Amplifier

Your car amplifier is not working. You don't have to be an electronics expert to check it out before writing it off. There are some minor items you should check prior to replacing the amplifier, which is expensive and may not be necessary. These are simple checks that anyone can do.

• Find the red power wire that connects your amplifier to the battery. Using a voltmeter touch one lead to the red wire and the other to a ground. It should light up or beep meaning the circuit is complete. If it does not then you need to check the ground wire from the amplifier next.


• Locate your black wire from the amplifier and make sure it is connected to any ground on the car. This means connected to any steel part of the automobile. Drilling a hole in any metal on the car and screwing the wire to that hole usually does this. Without proper grounding the amp will not work either.


• Look for the fuse that goes to the amp and check to see if is blown. This is usually found near the wiring within the amp. These amplifiers are made so if too much power goes through them the fuse will blow shutting them down to prevent blowing the amp.


• Take electrical tape and cover each wire on the amplifier individually so nothing else can touch it. Many times you will get a short in the wiring if anything is permitted to contact them. If this is the problem you will solve it here and prevent it from happening again.