T600 mirror noise

Yepper, annoying isn't it? I never found anything to prevent it, other than keep the window up.

 

I hade the same problem on a T800, stuff some paper towel around the edge, it works, can post a pic later if you need it

P.S. all that took was a grade 10 education

 

Mine did it when I was missing one of the screws for the trim piece. Put a new screw in and no more whistling.

 

I tried changing the adjustment, which worked.............Until the wind or me changed direction. Will try the paper trick tho. I also stuck my power ball mini out the window, and when I held it next to the shell, the whistle disappeared.

 

I was told to take some silicone and smooth it into the crack where the aero part of the mirror backside meets the frame (that has 6 screws holding it in) on the mirror side. Air whistles as it moves over that crack and silicone will prevent it. I haven't tried it yet on my T600 though. Normally dont have the windows down when driving I always have the sunroof popped up.