SoundBox Formed Series Vehicle Specific Enclosure - Vehicle: Ram Quad/ Crew Cab 2002-2018 - Subwoofer Size: Single 10" - Cutout Diameter: 9" - Fitment: Fits In Truck Cab, Under Rear Driver Side Seat - Subwoofer Firing Direction: Up-Firing - MDF Thickness: 5/8" Industrial Grade MDF - Carpet Wrapping: Black - Mounting Depth: 5" (Subwoofer Fit Varies With Subwoofer Type- Please Contact Us if You -Are Not Sure of Your Subwoofer Fit) - Fully Carpeted with Rugged Bed Liner Grade Carpet - Rugged Terminal Cups (accepts Banana Plugs or Bare Wire) - Constructed of Industrial Quality Grade 5 MDF