I read a post on this a while ago from a search but can't seem to find the post again. Anyway, someone solved the air problem by lining the door, under the current weather seal with 1/4" Metro weather strip from Autozone. This sounds similar to the tube sealing technique from the Audi forum, and if I remember correctly, the orginal poster said it worked. I wish I acctually got around to doing it back then, sometimes its easy to get used to things that are off with your car.