I just purchased a new 2019 Stelvio, and have started to notice that under moderate acceleration a loud air blowing noise can be heard from the center air vents. The A/C does not cut off, but the normal sound of it from just the center air vent does as this air blowing takes over. It only occurs while accelerating. Could this be a specific issue on just my Stelvio or is this normal? I've owned two BMW turbo-charged engines and none have ever had any noise/air come thru the vents.