Z3 Roadster (E36/7) whistle

I have a whistle when the top is up and you are driving into a headwind at 70 mph or so. Any ideas why , or solutions?

The two latches at the top of the windshield have adjustments. Try tightening them some.

i have tightened them and also loosened them but it still persist.

Maybe this...
http://www.bimmerfest.com/forums/sho...ht=whistle+top

Mccoynut, how tight are your rubber window seals to the front posts? I have a small whistling on the passenger side and found there was a slight gap between the roof window seal and the piller. Would not leak when it rained, but I guess the air pressure driving would force its way thru. Just a thought. Good luck.