2008 trailblazer whirring noise coming from the radio
I have a 2008 trailblazer. When the car is running and the radio is on, I am getting a whirring noise from the speakers, also when you step on the brake you get a tick sound, and when I turn the headlights off and on the noise tends to get louder. The only thing I have done recently, is I have changed the right headlight bulb that is all.
You can also hear it get faster when the engine goes faster