jmstrawn12
CarAudio.com Newbie
I recently upgraded my factory stereo with a new head unit, amp, speakers, and all the wiring and everything worked great for a month. Now the amplifier will work occasionally but most of the time will go into protect mode or not turn on at all. I checked all connections, ran resistance checks on the wires, and also did a voltage check on all power cables. I found that when the amp wasn't working there was between 6 and 7 volts running thru the system. When it does work is 12+ volts. I finally traced the problem to the ground cable which is connected to a long bolt that holds my passenger chair to the car. When I originally installed the ground cable I made sure to scrape away all the paint and use a brass battery lug to secure the ground wire. As mentioned it worked great for a month but now it isn't grounding properly. I removed the bolt and cleaned the area and the bolt with a wire brush then reassembled. It's still not grounding correctly. What could cause a previously good ground to go bad?
Mike Strawn
Mike Strawn