This noise started about a month ago. If music is above 4 or 5 then I can’t hear it, but otherwise it’s very annoying.
I have a dashcam which I disconnected to rule it out. No other aftermarket electronics are present. I can’t seem to pinpoint exactly where the noise is coming from.
Any thoughts?
Btw, my mid-30s ears can only hear one oscillating tune. The phone recorded multiple tunes.