There seems to be a whistle anytime we drive over 55mph. It seems to come from the front windshield or somewhere else up front. It's not the wipers as it stays the same when i turn them on and I've taped over the bottom edge of the windshield glass to no effect. Any ideas?

 

If you have a 2007 ...The sound is from the bottom of the side rear view mirrors....

If this is the problem glue the plate on the bottom of the mirrror...

 

I have the same problem with my 08. It appears to be something relating to the rubber seals around the window, as it depends on the weather (rain, dry, cold, etc).
The vents also whistle depending on which ones are opened/closed and what speed you travel at.

 

wasn't the TSB for the mirrors for a rattle? I have the foam fix from the TSB already. I haven't tried the vents, but I might tape all around the window and see if it helps. I've taped the bottom already so it should be somewhere else.

 

Not sure if you have a sunroof or not, but my sunroof used to pop up a tiny bit at highway speeds and whistle like that? Ended up having to weld a piece on the bracket that pulls it closed to hold it down tighter.

 

No sunroof.