I had the same symptom coming to work this morning - gauges quit and I could hear a faint buzzing sound. Kind of resembles the sickly sound of the worn-out key in ignition buzzer in my Miata beater/autocross car.
So as soon as I got inside work, I checked the forum and found this post. I never expected to find an EXACT duiplicate of my issue.
Replaced #5 fuse and all is well.
THIS FORUM ROCKS!
