We noticed when the car picks up speed a high pitched tune playing in the car, sounds like my tinnitus. It's not the fan or the motor and doesn't sound like wind, it's more of an electrical tone that varies in loudness and in pitch (so far I've detected 3 pitches sometimes all playing at once.). We haven't been able to figure out where it's coming from. Anyone else noticed it? If I can get a recording of it I'll make one.