Alright, this touches on several things about my wifes 2009 HHR.

First: I was on a web site and they listed a Cat back exhaust system from flowmaster, but when I go to flowmaster's site, none is listed for this year. Are they the same across several years or is this one different?

Second: I want to replace her radio with one that has a USB port on the front. I know the upgrade radio for hers came with this, but does it also have controls for a iPod?

Third; hers has the spot for the sub in the back driver side. Would the wiring already be there for adding the sub if I replace the radio?