I'm on my second H3, both had the terrible whine that comes with Replaceing the Radio, I've done everything, Ground Loop Isolators, Running different Grounds, ect. I learned to live with it in my last H3, I but I will not settle this time around.

I'm about to replace my radio Avic900BT for a Avic Z120BT
and I'm looking for anyone who has used the PAC audio OS2 Harness.
I currently use the GMOS-04

It appears that the PAC does not use RCA's to connect to the speakers, this might be a good thing?

Also, has anyone used the C2R-GM24 from Pac that doesnot retain the Onstar? I do not use onstar so I wonder if this would work.


Any info/opinions on Pac Audio Harnesses would be GREAT!!!