Fits 2014 UP GMC Sierra Double Cab Alpine S-W12D4 Type S Single 12 Sub Box New
Empty Sub Boxes. Fits 2014 UP GMC Sierra Double Cab Alpine S-W12D4 Type S Single 12 Sub Box New 2014 - UP GMC Sierra Double Cab Alpine Type S S-W12D4 Single 12 Sub Box New - Final 2 Ohm. - Kick Panels.