I have a weird noise coming from the center dashboard, right beneath the windshield. The noise starts only at 50-70mph and over. It's hard to describe, but it sounds like some part of the ventilation/heating, maybe some flap or so...
It this maybe a known problem which is related to speed? The car is a 2001 Accord Coupe V6.

 

Well describe the noise? Whining? Ticking? Can only help as much as you describe.