i have an 02 ssei i just bought a aftermarket h/u and the gmos-09 i have connected all the wires and the rca cables and still no sound? i have power and the h/u shows music is playing but nothing threw the speakers? if anyone has done this before could you please send pictures of the connections you made to get it to work please help thanks

is your car equipped with monsoon sound system? or bose?

if monsoon you will have to cut one of the wires in the GMOS-09 harness

i will look for the picture by the time you let me know which system you have

go through this thread

it should help

forgot to add the link!!
i hate how we cant edit out posts!
ugh!!

https://www.gmforum.com/showthread.p...&highlight=cut

Alright I'm gonna cut the blue wire next time I have the chance I think it was a6 correct? I hope it works I went from a 99 trans am to this 02 bonneville and it is just giveing me all kinds of trouble but hopefully this works thanks for the link

And also did you have to hook your RCA inputs that came with the gmos09 into your stereo to get the sound threw bec that'* how I have it now and I just want to make sure I'm not missing anything

But you still didn't answer my question, do you have Monsoon stock system or Bose?
The cutting wire method will work for Monsoon only, as far as I know GMOS-09 should work right away for bose

This makes me glad that my car came with an aftermarket H/U when I bought it. Let me avoid a lot of *** pain.

I hope you get it all working for you.