I have the same noise not the whistle it more like a "WHOOO" noise consistent when driving and an 40-60 mph range is when it really noticeable. I have a 6 speed and i hear it. I thought it came from the wing I just knew it was back there somewhere. It annoying without music but with radio I'm fine. Its not loud but an low annoying winding noise. Hope there will be a solution. Thanks.