Been noticing (on and off) that when I turn the A/C or heat on and put the blower anywhere from 50-100% power that there is a LOUD and fairly high pitched whistling or humming noise coming from what sounds like the glovebox.
If I turn the blower down, it goes away but will come right back if I turn it back up. The onset has been sporadic, but increasing in regularity. It's super obnoxious too. Any ideas?