I took this out of my jeep today so I could put the backseat in - wanted to keep it in there but I need to be able to mount a carseat in the jeep.
I have the key, the box and a foam liner for the bottom that I added.
It looks just like this - you have to remove the seat to install and it goes into the OEM back-seat bracket mounting holes. I can take a picture of the actual unit tomorrow.
All Things Jeep - Oversized Rear Cargo Drawer by Tuffy Products for Jeep Wrangler CJ (1976-1986), YJ (1987-1995), TJ (1997-2006), and Cherokee XJ (1984-2001)
$400 in Plano, TX