2007 grand prix gt

Wondering how to remove the stock radio in this vehicle and the proper wiring.. have seen ppl having problems getting aftermarket cd players not getting powered up.

Your vehicle requires a radio relocation kit. The OEM radio is part of the serial data bus and is integral to certain functions of your car, so it cannot just be removed. Most relocation kits contain the wiring harness to move it to the trunk.

is it possible to hook up a sub and amp through the stock factory unit then?

Ok so been looking online for an interface that i can use for an aftermarket stereo without rerouting the factory stereo.

Anyone know which interface is for premium bose.. non onstar... don't feel like having onstar, don't use it anways