Under the vent to the right of the radio, above the utility hook, there is one srcew. Take it out. The whole rest of the piece will pop out. Start at the hook and carefully work your way around the edge pulling each fastening point out.
2005 Dodge Ram Quad Cab DC Sound Labs Soundstream Blow-through See it here http://www.stevemeadedesigns.com/board/index.php?showtopic=34090