Greetings ladies & gents,

I have a fairly pronounced whistling coming from the air vents inside my 07 XKR. Much as I'd love to say it's the supercharger whine it most certainly isn't! It's most noticeable between climate control speeds 2 and 4. Beyond that, it's still there but there so much noisy air coming out it's in the background. Below that (i.e. minimum) it's only just noticeable.

It seems to be there whatever direction I tell the climate control to push the air (screen, feet, etc) and it's there if I close all the dash vents - so that makes me think it's coming from somewhere deeper in the system. If I get a chance I'll post a sound/video clip.

Has anyone come across this or got any ideas for a fix? It's bloody annoying!

Cheers
Mike