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I have a 2011 Lx570 that started making a strange buzzing noise. It only stops when I turn the car off. Turning the radio or AC of doesn’t make it go away. It’s coming from the middle of the dash board. Here’s a link to the noise. Any help would be greatly appreciated.
Do u have any 'outlet' plugged into the aux power port by the shifter? Or a dash cam / radar detector / other electronics mounted by the rear view mirror? if so unplug them from the aux power outlet . Do u have a cell phone / ipod / radio transmitter somewhere close to the dash?