Can somebody give me a breakdown of the various connectors and boxes I will need to install the following: an aftermarket head unit but with full utilization of OnStar will all the chimes, etc...and four 6.5" door speakers and new tweeters. I would appreciate it if anybody can point me to a retailer you trust who offers all of it-the OnStar interface, radio wiring harnesses, and door speaker harnesses. I don't want to cut and splice a THING.

Thanks!

 

Bose ? Monsoon ? or base factory audio?

 

Guess that would make a difference, huh??? Ooops.

My 3 has the base radio, no bose, no sat, no nothing. I would appreciate it if you guys could suggest a place to order from that you like, too. Good service is just as important to me as is the price.

Thanks again!

 

I went with the Valor DTS-660W a Pac OS-2 and chime module however I have disco'd the chime it drives me crazy.
I am a retailer so if your interested let me know

 

I sent you a message. Thanks!