I am on my second trip back to the dealer for wind noise. I discovered what my issue was so you guys may be having a similar situation, there is a vertical seal between the glass and the drivers mirror. It is supposed to be on the outside of the glass, not the inside (compare against the passenger side). Everything had been fine with my car, drove to work, left for an errand and heard this whooshing. Quickly diagnosed it, told the dealer what needed to be replaced. They fixed it, got the car back, and 3 months later, the seal had moved to the inside of the window again. Its back getting a new one right now.