audi a4 dome light rattle

As it turns out it isn't the dome light that rattles so bad--it is the piece of plastic right behind it that covers the built in microphones (for the bluetooth that I don't have).
It's not actually that hard to take the whole thing apart but the steps at audiworld helped. I took the whole assembly apart which made it easy to snap the rattling mic cover off. I then stuck some double-sided tape (the puffy stuff for mounting pictures to frames) on the inside and re-assembled. Hopefully this fix will last longer than the dealer's did.