Upgrade your audio system with the Kicker VSS Multi-Channel Amplifier and Powered Subwoofer Kit. It is made to fit your 2011 and up four-door Jeep Wrangler but is not compatible with vehicles that have the Infinity premium audio system. Included is a 10 square Vehicle Specific Solutions PowerStage Series subwoofer along with a digital signal processor with a built-in four-channel amplifier. The amp is rated at 50W RMS and has pre-set high-pass filters EQs and a speaker time alignment. This car subwoofer kit also comes with a molded plastic enclosure that fits the back of the rear seat plus a custom-engineered mounting bracket and a harness for connecting the processor to the stereo. All power and signal wiring is pre-cut and terminated.