Chrysler 2009 Aspen - Owner Manual - Manual (Page 52)

To reattach the seat belt to the third row center seat, pull
the small (keyed buckle) latch plate forward from the
headliner slots and insert it into the keyed buckle until
there is an audible click. Refer to the previous section for
the proper seat belt usage.
Third Row Center Seat Belt
Headliner Stowage Slots
50 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE