Having problems with wiring your subwoofers? Well, watch this video tutorial to see how to wire subwoofers in your car by parallel or series. You'll see exactly how to hook up the speakers to your car amp, either in series circuit or parallel circuit. It just depends on what you want. Elemental Designs shows you how.
Check out the second video to see how not to hook up your subwoofer out of phase and what might happen if you do.