I haven't seen this posted anywhere so I'll ask...
I have the Avic D3 w/ rear view camera, XM w/ Nav, Bluetooth.
I recently installed it in an 05 GMC Envoy. using the Metra GMOS-4 adapter to maintain bose+onstar.
I had alternator noise, so I grabbed some of the Radio Shack ground loop isolators.
WHen I put those in the alternator whine stopped, but I started getting some crackling coming from the speakers.
This happens even when I completely unhook the stereo from the metra unit as far as the RCA's are concerned.
is it possible my Metra device has gone bonkers?
Than
