OK!
For those who are wondering why there is a fuse in the fuse box for an AMP, yet they dont have the premium sound system, here's why:
the Cobalt comes factory with a base sound system including four(4) amplified satellite speakers. The Premium sound package includes four(4) amplified Pioneer satellite speakers, two(2) high range Pioneer tweeters, and one(1) amplified low range Pioneer Sub woofer
the Sub's amplifier would be located with the XM satellite receiver(if equipped) under the rear dash panel, the amplifier for the satellite speakers are located underneath the stereo in the center console
For anyone who has tried to re-wire for an aftermarket deck will have noticed an amp wire coming from the stereo that they will need to reconfigure.
Hope that solves any confusion
