MTX Thunderform Amplified Subwoofer Enclosure for 1998-2003 Dodge Durango w 1-8" Sub DD8A-T45 8" Thunder4500 Subwoofer Single 8" Ported Loaded Thunderform Subwoofer Enclosure Complete with a built-in 200 watt Class D Amplifier Mounts behind rear seat on driver's side When installed, the seat bottom will not flip up