I got some rattles here and there as well on my 04, got used to it by now (+84K miles). Don't bring to dealer if its easy fix, they'll make it worse, sux but you won't regret. For innstant, rear view mirror like one mention above, mine was nasty rattling noise, but after stop by a mechanic shop or buy if u prefer, ask for a little amount of ahessive tape (winshield sealer) and fixed that issue.