Touareg :: Wind Noise From Passenger Front Window Or Mirror Area?

I have a rather annoying high pitched tone coming from the front passengers side widow/mirror area. The dealer says it's normal wind noise from the mirror and can't do anything about it. I think they are just being lazy, and I think it's actually a window seal issue.

Here are more details; I hear the noise typically only at speeds above 60-65mph, although I have heard it as low as 40mph, but was driving into a head wind (so the combined air speed was about the same). It is a high-pitched, high-frequency noise that almost sounds like a continuous tone. It is loud enough to be annoying even with the radio on at moderate volume. It will disappear completely at speeds lower than mentioned above. It is localized only to that one side. The drivers side mirror/window is silent (for this issue at least) no matter what speed I am going.

A recent road trip gave enough frustration on this issue to make me begin experimenting. I taped up various mirror seams in a number of configurations and none alleviated the noise. At one point I rolled down the window about an inch to see If I could hear it more clearly from the window. The noise disappeared but I thought the turbulent wind noise at that speed might be masking it. So I rolled the window up and then just *tapped* the switch down the slightest amount and to my surprise the high-pitched noise disappeared completely, yet I did not open it enough to hear regular wind noise. This all leads me to highly suspect a window seal issue, and not mirror noise at all. Cracking the seal so slightly must allow the pressure to equalize canceling out the noise.

When I took it in for the issue they say (of course) "Can not replicate, wind noise from mirror within factory spec, no action taken" and something about cracking the window "re-aligns the flow over the mirror into the cabin reducing the noise" sounds because the drivers side is as silent as the grave, and the mirrors are symmetrical to my knowledge.