I am running an aftermarket amp. Its mounted on the back of the rear pass seat. What RCA plugs are you suggesting I move? I had a Tweeters store install the after market stereo. I wouldnt know where they grounded it. I would think its grounded through the harness. The electrical noise im getting sounds like if you drive under high tension power lines, you get that buzzing sounds until you pass the power lines. Im able to squelsh the buzzing noise out, and only receive strong signals. Running the CB on accessories, I dont get the electrical buzzing.