I spent all freakin day tryin to get this AVH P4000 in. I am having a few problems. I am installing it in an 05 Chevy avalanche. The factory radio is non bose with onstar, I have the PAC SWI PS for the steering wheel controls and the Metra GMOS 1 interface for the onstar and chimes. I got a BOYO rear camera. I got it all in. The onstar seems to work fine. The steering wheel controls seem to work fine. The camera positive is hooked to a switched 12 volt source. I connected the reverse wire from the HU to the one for it on the Metra interface.
The problems:
1. When I listen to anything,