Need Help Taking off Rear Deck (96 sedan)

[aznxthuggie]

hey guys, i recently noticed some horrible rattling everytime i turn the volume up in my car, and i've localized it to the rear deck, i was looking at it, and there seems to be a gap between the metal, and the deck itself, the rattling is comming from there, i have some sound deadening, but how do i get in there?? any ideas on how to pull the top of the rear deck off? thx