I know there a lots of threads about upgrading the sound in our jeeps. I've learned a lot from them and will be installing an upgraded system (Polk dx6501 components for the front and dx651s for the overheads) this weekend. I will also be adding a Rockford Fosgate P300-12. I'm hoping this will be something that is portable enough to take in and out as storage is needed. My question is...since I know there will be times that I want to remove the new sub/amp combo, is there a way to also keep the current 8" sub? So, run them both and then only the factory sub when the aftermarket is out?