Found out the wires on my subwoofer are ripped out of it. It's a Pioneer one, so can a aftermarket one of the right size fit and work? Where is the CD changer wiring located at?

 

This topic has been thoroughly discussed. Do a search in the electronics forum and you'll find what you're looking for. The short answer for sub replacement is that you can put an aftermarket one in there, but you need a 2ohm sub.