JEGS 555-48353 Backseat Driver Subwoofer Speaker System mounts to a power board specifically for your 1968-1972 Buick Skylark, Chevy Chevelle, Monte Carlo, Oldsmobile Cutlass, 442, Pontiac GTO, Lemans, or Tempest; attaching directly behind your rear seat, bringing state-of-the-art audio sound to your classic ride. Feel the beat with its 600-watt BOSS amplifier powering up two 275-watt 8-inch diameter subwoofers. Installation is easy and is equipped with cables, wiring, and mounting hardware to complete your system connections.