pilyin 10+ year member
CarAudio.com Elite
I'm guessing I've got a grounding issue going on. I've got the stuff in my sig. I've added a ground to the HU ground. I've done the RCA grounding thing. I think my amp grounds are good, but I'll try grounding them somewhere else when I get home (I'm at work). When my HU volume is at zero or off, I get engine hum through the speakers. When I turn my radio on or turn the volume to 1 or more (out of 35 or so) there is a loud pop, and the hum goes away. There is also loud pops when I change radio stations, tracks on a cd and stuff like that. Any idea's that might help get rid of this?