Static/crackling from A-pillar speakers?

[Will2]

Anyone else have this? Car/audio system are all stock.

Ever since new, I've heard light static/crackling whenever the audio system has power, including when the car is off and you open the door. It's like subtle 'white noise' that happens for ~30sec before it shuts down in the background. I don't recall hearing this on multiple prior S650s, so I wonder if it's a bad ground somewhere or the Audio Control Module is defective. No DTCs or any other errors in FORScan for what that's worth.

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[D/\rK•650]

This could be the fan noise from radio behind the middle screen. I hear mine if ignition on but radio off. Very light whirring noise like white noise. Try turn on ignition radio off fans off and listen you should hear it. Very light white noise type sound.