I noticed what I thought was some wind noise the other day originating from behind me on the right hand side (maybe different on left hand drive cars). The noise increased with speed and I couldn't work out where it was coming from.
I have since noticed there is a vent next to the rear passenger seat behind the drivers seat where the seat belt rests and note there isn't one on the other side.
I've tried to change air flow positions and fan speed of the a/c but no air comes out it. Just wondering if anyone knows the purpose of this vent??