Found this thread last night and fixed that VERY ANNOYING rattle that has been driving me f'in crazy lately!! Tried three times to find it earlier this year behind the glovebox where I was sure it was coming from. Had girlfriend drive me around twice with glovebox and coverplate removed searching with my hand trying to locate it..( rattle was happening from 1100-1500 rpm and constant going 40-45...) Popped the hood and folded up a small piece of cardboard enough to fill the gap and put pressure where the air intake goes into the right fender.
No more buzz. Thanks TW, that buzz was driving insane