Full blowers?

[Dvader]

Got your attention. good.
I have a problem on the passenger side of the car when you put on the blowers full power i get a horrible whine from that side. any ideas of the cause and how easy will it be to get it fixed under warranty? :?

[Dvader]

strange found the noise goes away when i open the door? very strange.

[shadbor]

had this on a corsa once it was the door membrane vibrating, god knows how but it only happened whei had fans on 2 3 or 4. also very easy to fix under warranty!