I have this subwoofer under the passenger seat of my Ford Focus built. It is operated behind a Pioneer DEH70bt the subwoofer output. It should be noted: As a stereo RCA cable is needed. ;) The connection went otherwise without any problems. Somewhat annoying is the extremely bright blue LED on the remote control - I'll paint over with a permanent marker. Now for the main. The sound is surprisingly good - I had not reckoned with at this size.