Has anyone experienced annoying buzzing noise in the passenger side dash or the door area? I've read about the speaker rattle and that's what the dealer thought I had and replaced the tweeter assembly. I guess they thought I was getting some audible feedback when I specifically said it's more of "mechanical" buzzing. I am planning to take it back to the dealer but I wanted to see if others had similar issues. I would hate for the dealer to tear into the dash etc and perhaps make the problem worse. The buzzing occurs all the time and worse if roads are bumpy.