I need help ASAP. I have the sun and sound package on my GTS. I got a Alpine head unit. Installed it myself and no sound, then I went to an audio shop and they said it was wired fine. they said I had the wrong harness crutchfield sent me a harness, but when I called them with the problem they said they do not make the harness for the factory amplified kit. What can I do??? Will there ever be a harness to solve this problem

 

If I'm not mistaken I believe if you have the S&S package you need to run new speaker wires to all the speakers. Pain in the a$$, thats why i havent got a new head unit.

 

I have not looked at the schematics but I think the head unit on the S&S may run all audio to the amp, then to all the speakers. I don't know but I would get your hands on a schematic (i have them at cheap cost, mostly shipping is the cost) PM me if you want a copy.