RAM 2013 CHASSIS CAB 3500 Owner's Manual page 108

106 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE
4. Attach the hook to the center tether strap loop (see
diagram). Tighten the tether strap according to the
child seat manufacturer's instructions.
Tether Strap Through Outboard Tether Strap Loop And
Attached To Center Tether Strap Loop
NOTE: If there are child seats in both of the outboard
(left and right) seating positions, the tether strap hooks of
both child seats should be connected to the center tether
strap loop. This is the correct way to tether two outboard
child seats.
Center Seat:
1. Raise the head restraint and reach between the rear
seat and rear glass to access the tether strap loop.