Hello. I recently purchased a 2015.5 volvo s60. When I open the sunroof in the vent position, I hear a high pitch whistling from the drivers side only. Any ideas what could be causing it? I tried to press on all the seals around the driver's side window, as well as the area in general, but couldn't pinpoint the whistling noise. I also checked for any debris in the sunroof area. Any body with the same issue before?

 

Any ideas? I checked all the seals around the drivers door and they appear to be fine.

 

Dealer. It should be covered under warranty.