This thread is a bit old, but matches my issue pretty closely. Any "smoking guns" found for that noise? Mine also goes away (or maybe is covered by the ICE noise) when I step on the gas. Or if I pop in into neutral at speed. I would add that when braking, I now hear a high pitched whine that lowers in pitch as the speed decreases. Thought maybe my ANC had died, which I can't prove one way or another because the car sounds the same to me with the ANC fuse in or out.