RT/OBCON - 2012 Chevy/GM Crew Cab Dual 10" Slot Vented Speaker Box With Labyrinth Power Port (full bench rear seat only) Designed for: 2012 Chevy/GM Crew Cab (full bench seat only) 45" wide x 16" deep x 6" tall "Tri-lock" joint construction (caulked, glued, and stapled) Speaker mounting depth: 4 1/2" - Air Volume: .9cf Labyrinth slot vent design (downfire)