rexmaster

I just noticed this sound when I was driving with a rear passenger side window opened all the way. All other windows including moonroof were closed, except this one window. It sounds like a helicopter flying right next to me and it even hurts my ears.

Strange, but anyone else noticed this sound?

chipmunk

Yes, it happens to most four door automobiles.

sj993

Yep, same here.

RDXtremist

that's normal, turbulence in cabin caused by too much wind entering but no way of exiting.