I was walking around my cruiser while it was idling, and I felt around the "vents" behind rear side window. I've always thought these vents were not functional, that they were just there for aesthetics. To my surprise, I felt air coming out of the vents on the driver's side (I didn't check the passenger side). Can someone shed some light on where this air is coming from? Is this some kind of exhaust for the climate control system?