i just installed a pac vci-gm2av interface.to stock touch nav.back up camera works .the dvd player that runs the head rests is now running the stock deck .picture works but there is no soud.just radio .any help would be so great .i'am almost done i JUST NEED SOUND thanx

 

Wish I could help............. but..............Don't know.

Someone here should be able to help you

 

got it figured out thx anyway