THREAD REVIVAL!!
UPDATE:
After 4 months of living with the problem, I decided to see a buddy who also is familiar with car audio as I am,
turns out the gmos-04 adapter has 2 potentiometers inside of it (one for door chime volume one for audio volume)
after fiddling around for hours checking grounds once again checking everything we found that turning down the audio potentiometer in the gmos-04 got rid of the static + alt whine i was getting!!
Bull s**t!
anyways I am pleased with my system now loud as hell and while we were at it disabled the dvd parking break. (no I will not wath when driving just wanted the feature for passengers etc..)
Now I feel I am the master when it comes to the gmos adapters for gm vehicles having spent hours on it!
