Jeep 2006 Wrangler - Manual (Page 40)

The rear seat lower anchorages are round bars, located at
the rear of the seat cushion where it meets the seat back,
and are just visible when you lean into the rear seat to
install the child restraint. You will easily feel them if you
run your finger along the intersection of the seatback and
seat cushion surfaces. In addition, there are tether strap anchorages behind the
rear seat (on the floor behind each rear outboard seating
position).
Rear Seat Latch Anchors
Rear Seat Tether Anchor
40 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE