Originally Posted by InvisiblePants
I had a similar problem. But only when opening the driver door. Popped the beeper off the back of the instrument panel when changing the panel lights to leds. Beep permanently disabled.
I believe a less permanent way to disable the beep is pull fuse 4.
I would do what the OP did by unplugging the connector to the key chime at the ignition than pulling fuse #4. Pulling that fuse would also disable your interior lights and if you have an alarm, it would also disable your door sensors.
OP, If you are periodically losing gauges while driving, I would recommend pulling your dash cluster and cleaning/rebending the contacts and applying some dielectric grease. It sounds like bad connections in the cluster and you can try pushing the dash next time it happens to see if the issues resolves.