Custom Rhino Dual 12 Speaker Sub Box for Gmc Sierra 99-06 Ext Cab Truck

Custom Rhino subwoofer enclosure built to fit Gmc Sierra 99-06 Ext Cab trucks. This vehicle-specific sub box is designed to house dual 12 speaker subwoofers, adding powerful low-end without sacrificing cabin space. Engineered for a precise fit in the Ext Cab layout, it provides a clean, purpose-built solution for upgrading your truck's audio system.