I driving it yesterday and i rolled down the rear windows and i was going about 40 and i started hearing this throbbing noise. It was sort of deafening. I rolled the windows back up and the noise stops. The car is brand new, i mean 100 miles only from an acura dealership so i'm curious, does anyone else's TSX make this noise? I'm thinking it's from poor aerodynamics because i read somewhere that it can lead to excess noise.