I have similar issue with wind noise only at drivers window. Had the technician place plugs etc twice with no effect. My yearly service is coming up in May and will keep you posted on the outcome.
I have similar problem with wind noice on the drivers side and it seems to be from the top of the window. Technician place some foam in the door gap. However noice seems to persist.
Any one has any success with any other fixes. Other than this issue my Pure has been doing very well.
Thanks
Chandra