RAM 1500 Owner's Manual page 115

3. Pass the tether strap hook under the head restraint
behind the child seat, though the tether strap loop
behind the seat and over to the center tether strap
loop.
Tether Strap Through Outboard Tether Strap Loop
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 113
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
2