Pop the rear seat out and there will be a couple of bolts at the bottom of the rear top seat cushion. (7/16" I think) Remove the bolts and pull up on the seat and it should pop out. Behind the seat is a piece of cardboard, remove it and then you should be able to find someone skinny enough to shimmy in between the seat frame brackets and get back into the trunk. Once you get to the trunk lock, insert a flat bladed screwdriver into the back of the lock assembly (You will see the slot) and turn the screwdriver and the trunk will pop open.While the seat is out look for the build sheet under the seat in the springs of the seat.