http://www.ft86club.com/forums/showt...?t=9676&page=2
Just took the door panel off to fix this. I used 3m tape and put it between all interfaces between the speaker-grill/window switches and the door. Also, the actual switches/box they sit in has some play, so put a little in there as well. Whole process took about 45 minutes. Hardest part for most will be removing door handle inserts, but mine where already off from previous project.
No more rattles, but waiting for a little cooler temps outside to be sure.