JL Audio SGRU-12 Subwoofer Grills & Trims which automatically lock the MX4’s

which automatically lock the MX4’s panels to prevent thieves from prying at the cover’s sides for entry into the bed

four bumper-mountable ultrasonic sensors included

Two (2) 16 AWG OFC Copper Speaker Leads

are water-resistant

JL Audio SGRU-12 Subwoofer Grills & Trims which automatically lock the MX4’sSteel mesh grille insert for select JL Audio 12 inch Subwoofers. Provide attractive, sturdy protection to your Subwoofer with this fine steel mesh grille insert, powder coated in a satin black finish. The insert is designed to fit snugly onto the woofer's grille receiver ring. Fits: 12WX, 12WXv2, 12W0v2, 12W0v3, 12W1v2, 12W1v3, 12W3v3