4)JBL 6.5" Coax Car upgrade Speakers & 4 Channel Class D 1600 Watt Amplifier | eBay
Amazon.com: Pyle 12' Car Audio Speaker Subwoofer - 1600 Watt High Power Bass Surround Sound Stereo Subwoofer Speaker System - Non Press Paper Cone, 90 dB, 40 Ohm, 60 oz Magnet, 2