audio interference

[raustinss]

I got to agree with both previous posts the vast majority of electronic issues are related to the ground, check all grounds, engine to body.engine to frame.body to frame..radio to body and yes rca wires are notorious for picking up ignition noise when I was big into stereos (90's)lol everyone ran the rca's down one side of the car and power wires for the amps down the others. Try to shield the ignition system. Another thing to try unplug the rca wires from the amp then turn on the stereo without it. If you need to use a jumper wire for the speakers then do that. This should help you figure out if the noise is coming from the deck or thru the amps
Good luck
Ryan Austin