no sub for sale but here's some help looking or installing one when you get it. i have a 10" rockford fosgate under the rear passenger seat. I built my own box. its a tight fit. I had to pull the seat cushion and put a layer of plywood under the cushion because people would compress the cushion and sit on the woofer. i needed a little over half a cubic foot of airspace in the box which i couldn't get by just the box so i made another small box which sits under the middle seat and has pass thru's drilled for air to ... pass thru and also is a place to mount the amp. i used silicon on all edges to seal the whole thing up. My advice would be to remove the whole panel behind the seats and build a nice setup back there. Its a pain trying to move mine to fold the seat down and if your sub is any taller than mine you'll have height clearance issues.