Hi all, I just got an 06 5 door with the bose system. The previous owner had an aftermarket sub box installed, and the dealer removed that before selling it to me. The sub in the back isn't kicking at all, I'm thinking it was never hooked back up. Do any of you know where the sub connects to the system other than the wire harness in the trunk? Does it connect to the stereo in the dash or does it connect to the amp underneath the driver's seat? Thanks!!