I have been doing post after post trying to get my system right then someone told me that maybe its the radio and not the ground. So I took my mp3 player and hooked it straight up to my amp started the car and the sound was crystal clear no ground loop or anything. So then I got a fresh pair of rca's hooked them up from the radio to the amp and the disgusting fuzzing sound of a ground loop. So now it has to be the radio . My question to everyone is, is this just a pioneer thing, is it a defect or broken, or is this something that can be corrected?
Go to the rca's in the front and hook your mp3 player up there and see what happens. If you are running new rca's then go ahead and run a ground from the amplifiers ground to the radio's ground wire and see if that helps.
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I'm not running new rca's i just hooked up some new ones through the car. to see if the old rca's were the problem. arent the rca's in the front outputs. What will I be looking for? if i run a ground from dist block to the radio it will be about 10 ft long maybe a little more.