kmaluo wrote:Crap, it's not the inverter. I tracked the high pitched sound to the center lcd display behind the steering wheel. Can anyone else here this. Try closing the doors, turn everything off, put your ear by the top hole of the steering wheel. When the display turns on, if your ears are sensitive enough, you'll definitely hear it. I can hear it going 60mph with soft radio on. I'll have to go to Kia and check another Soul out.
Yup I can hear that too. You will notice that it's louder when the intensity of the display is increased (I.e. bright sunlight during the middle of the day). My guess is that it's a noisy circuit that controls the power to the display brightness, as it is far less noisy at night when the panel is dimmer (lower output).