I have a 2004 GMC Sierra 1500 with the factory installed Bose sound system. I have been looking but am unable to figure out whether or not I can hook up a aftermarket headunit (Alpine IVA-W203) and still keep the Bose amp and speakers. If so, what adapter or harness will I need to do so?

 

Pac os-2bose

 

Thanks alot, I looked for that for about an hour lol. I have a Alpine IVA-W203 and I am gonna use the PAC OS-2BOSE. I am also gonna use the PAC SWI-X to retain my steering wheel controls. Do you know if I can use the PAC TR7 along with these to bypass the video lockout?

 

the TR-7 is what u need. USe a SWI-JACK instead