Audio Enhancers SGMX65C12 Chevrolet GMC 1500/ 2500HD/ 3500HD Extended Double Cab 2007-2016 Subwoofer Sub Speaker Box
Installation Comments: Fits under rear seat, only fits new body style. Will fit 60/40 rear bench seat option. Note: Models with low transmission hump will require rubber feet, available at no charge if request is made when ordering. Double Cab models have 4 forward-hinged doors; Crew Cab's doors are all the same.
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