Touareg :: Whistling Right Front - Variable With Throttle

I have an 04, vin 70k+ V8, Nav/Air Susp. with 35k miles. My problem seems pretty specific:

I have a solid whistle in the front right area of the truck above very slow speeds. It really does sound like air moving, so I was thinking mirror/rack, wheelwell, etc. But, when I push the throttle, even a little, it subsides greatly...almost gone. That's what makes me nervous.

Of all the posts I read, the only one that seems like it might be my problem is the driveshaft bearing, maybe because of the torque, etc placed on it during acceleration (I'm no mechanic). I would think that any aerodynamic type problem would have nothing to do with slight throttle changes.

Am I on track? Common occurrence? Anything I should tell the dealer? I'll probably take all this to them when I do the 40k service. I also got a the running gear fault last week, but it hasn't returned. Do you think my Air Susp seals/piston rings are going too?