Now I was just told that I need to get the GMOS-04 Onstar interface for it...so I can keep my onstar and volume control and use the factory amp....I found used ones starting at 19.99 and I found new ones starting at 48.99, so I guess I will have to order it and see what happens I guess....Originally Posted by TheBeastGTP
same thing happened to me. Some one else can chime in with more detail, but it then becomes necessary to rewire something in the speakers i believe. Any way i took it some where to get it done and that is what they told me, they did a horrible job so i got a refund. But now my left side speakers go in and out when i hit bumps!
