i do but i dont have pics.you can fit a decent size sub behind there if you dont always have people sitting in the back.i have truck boxes from best buy with 10" subs behind the seat.
I dont know the dimensions off the top of my head. I built the box myself so it was a custom fit. I was able to run the seat all but one click from full rearward position. Those are 12's in the box.
yeah Don, I know the wires are a mess in that pic.