I have a 2007 Kia Rondo, automatic transmission. It recently started buzzing after being driven for a time. If I move the car out of drive and into neutral the buzzing stops temporarily. If I move the car from neutral to reverse the buzzing begins again. If I move it back to N then to D, the buzzing will stop for awhile. What the heck is buzzing? It sounds like a florescent lightnn but louder.