Ford Mercury Manual page 443

The tether strap anchors in your vehicle are in the following positions
(shown from top view):
• 5 passenger vehicle
For the center seat, use either of
the two tether anchors/cargo
tie-downs in the scuff plate along
the back edge of the floor.
• 7 passenger vehicle
Attach the tether strap only to the appropriate tether anchor as
shown. The tether strap may not work properly if attached
somewhere other than the correct tether anchor.
1. Position the child safety seat on the rear seat cushion.
2. Route the tether strap under the head restraint and between the head
restraint posts.
3. Locate the correct anchor for the selected rear seating position.
When placing a child safety seat in the 2nd row center seating position
of the 5 passenger vehicle, the tether straps may be attached to either of
the tether anchors located at the rear of the cargo area.
Seating and Safety Restraints
131