I have turned off everything...all AC, all fans, all radio anything that is on when its running like that i have turned off and it onloy makes the noise when i let off the gas. if I let off the gas a little or a lot..its all the same. Ringggggggggggggg ...till the gas is pushed again or i level off on the pedel...its very very strange. I dont know if its the fly by wire gas pedal telling me that its about to go out or what.