Ford 1998 Crown Victoria Owner's Manual page 75

Seating and safety restraints
2. Pull down on the shoulder belt
and then grasp the shoulder belt
and lap belt together.
3. While holding the shoulder and
lap belt portions together, route the
tongue through the child seat
according to the child seat
manufacturer's instructions. Be sure
the belt webbing is not twisted.
4. Insert the belt tongue into the
proper buckle for that seating
position until you hear and feel the
latch engage. Make sure the tongue
is latched securely by pulling on it.
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