Jeep 2007 Wrangler - Manual (Page 72)

The rear seat lower anchorages are round bars,
located at the rear of the seat cushion where it
meets the seat back, and are 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.
Latch Anchorages (2 Door Models)
72 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE