My little bro has a bose system in his grand prix. he wants to replace all of the speakers and the HU. How do you bypass the stock bose amp? Ive wired a lot of stereo systems before but none of them had a bose system previously installed. Do i have to run new wires for all of the speakers in the car? Also ive heard of a module that allows you to keep using the steering wheel controls. does anyone know where you can get them and what exactly they are called? He has a 2002 GTP 40th Anniversary and i believe he has onstar as well. Thanks