First, use your knees to push back (towards rear of car) on the bottom seat cushion and pull up on the front of it, should "pop" out. Then you will need to unbolt two bolts on the sides of the seat back, one on each side. Remove the hatch/seatback carpeting, and unscrew the screws holding the metal plate to the floor of hatch, behind the rear seats. Remove the (two or three?) little nuts between the seatbacks, where the cushion used to be.