I've noticed a very high pitched, quiet noise coming out when I have my AC/Vent/heat etc turned on. It sounds like radio type intereference, but I had the faceplate off today and it didn't go away. Kinda sounds like when you have that high pitch noise from the radio cuz you used non resistor plugs instead of resistors (old school stuff). I know there is a noise filter under the hood for the radio, but this is coming out of my fan settings, like the motor itself. Any ideas? It gets worse as the fan is turned up; acceleration doesn't seem to affect it. Normally, I turn the radio up, but this has me stumped.
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