Take your factory sound to the following level with a Kicker VSS PowerStage Subwoofer Upgrade System. PowerStage Audio System Upgrade Kit Includes Direct-fit subwoofer enclosure with a 10 inch sub 200 watt built in subwoofer amplifier Try to separate multi channel amplifier for factory speakers Plug Play electrical wiring harness set up Installation mounting brackets. Optimized, 32 bit digital signal processing tuned particularly for the car or truck of yours. Loaded enclosure thumps with a big bass 10 inch subwoofer. Built in sub amp produces high efficiency with lower power draw....