So DanDan which wire harness interface should i get so i can have an aftermarket headunit and still install a aftermarket amp. I kno that i have to keep the Bose amp but cant i just wire the speakers to the headunit or the aftermarket amp without any problems with the harnesses i listed above.
Found another http://www.installer-data.com/item/display_item.php?it=gmrc-02
I finally got my car back. They Cadillac brought the car to a car audio shop and they put in a pioneer cd player deh-1700 and they said they but in a cadillac interface cable yea sh*tty cd player but it works and no problems have accured now. And they didnt put in the Bose amp either. I wonder how they did it! I noticed that my speakers arent hitting bass notes as much as my other headunit which was a tv/dvd/cd player. Im just happy to get it back. Thanks u guys for all the help