FORD 2001 Windstar - Manual (Page 158)

The tether can be attached directly to the rear of all passenger seating
except the front passenger seat equipped with power adjustment. The
front passenger seat with manual adjustment does have a tether anchor.
Front passenger seating position (manual adjusting seats only)
1. Position the child safety seat on
the passenger seat cushion.
2. Route the child safety seat tether
strap over the back of the seat.
3. Grasp the tether strap and
position it to the seat frame.
Seating and safety restraints
158