| I have still been unable to stop the buzzing which only comes out the passenger door tweeter when the lights are on.
i have been thinking of getting a GROUND LOOP ISOLATOR and putting it from my head unit to my amp, but i have no idea if this will fix it as i only run a sub off my amp no speakers.
the speakers run off the head unit.
do people think that a GROUND LOOP ISOLATOR may fix it even if no speakers run off the amp??? | 
