i understand that pioneer heads have a poor internal ground which is probably why im getting all sorts of engine noises. you can hear a click every time you use the turn signals, hit the brakes, turn on the heater fan, etc. anyone know how to fix this problem? its a deh-4600mp-kicker 650.4 amp-3x5 pioneer speakers in front and waiting for my new boston acoustics 6x9s in rearin a 92 lesabre.thnx .
