Couple of things that I deadened when I did my Dynamatting job:My A-pillar had some weird popping noise so I put a 2" x 24" strip on the frame under the cover (pops right off).The little light in the door panel is loose and makes a little noise.
I would get some deadening material and then pull your doors off. You will need about 12 sq. ft.Door Panel Removalhttp://forums.nicoclub.com/zerothread/157798
Deadening Materialshttp://
www.b-quiet.com/ultimate.htmlhttp://www ... x.cgi?p=pr
Good Luck!