OK, this is making me nuts

. My JBL door speakers are wreaking havoc on my door panels and making them sound like junk. I have brought to dealer with little improvement and tried the business card in the change holder trick, but it still rattles. I am thinking that I will have to do it myself and remove the door panel and insulate with foam, glue and dynamat. I did this years ago on a Mustang Convertible that had a Mach460 audio system and the rattles went away after my little project.
Anyone tried this? Can someone tell me how to get the door panels off without screwing it up?
Any help would be appreciated.