How difficult would it be to disable the beeper?
It’s very easy to disable. It’s just a pseudo-beeper mounted below the speaker. Open it up and clip one of the wires to it, or, in my case I didn’t want to completely kill it, so I just stuck a few sheets of paper in front of it. Muffles it pretty well, no longer an ear-splitting beep. I did this at the same time as I was removing the tuning mute.