Bazooka FAST Harnesses, installation is a breeze! Ideal for leased vehicles, or vehicles with difficult audio systems, the FAST harness allows you to add bass to your system with a quick, pug and play installation. No cutting or splicing of factory wiring is necessary! Once you"ve to the correct interface cable for your car and the extension cable, simply plug in your amplified Bazooka subwoofer. It"s really that simple, and you"ll know it"s done right the first time, every time! (See Bazooka.com for compatible models).