I wondered about that also. I figured it meant that either air is entering somewhere else from the front and exiting through that gap, or there is some vacuum effect and air is being pulled into that gap and swirling is creating some noise. Would be interesting to know, if someone actually knows.
Originally Posted by dtownx3
Do you mean it was created by the gap between the mirror itself and the housing? ... i.e. on the mirror-side, facing the driver?
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