I don't know if it is the ecu or not.....but if i turn the key to my car on not start the car), and wait a few seconds with the radio muted.....i hear a kind of electrical moan or something goes on for a couple seconds then its finished.....if you sit long enough it will do it again i think. Ideas, suggestions, normal, anyone else have it???

 

... that is normal.. wow, you have cat ears/hearing

 

alrighty then hehe thanks