Please HELP 87 300e instrument cluster gauges quite working
 

My 87 300e gas, water temperature, tachometer, and oil gauges quite working. Theres now a buzzing sound that stays on unless i turn the turn signal on. How do I go about fixing this?

I take it you mean the guages all stopped functioning at the same time. Start with the easiest step: Check for any blown fuse(s). If you have a manual stating the function(s) running through each fuse, that is most helpful. If fuse(s) good, then check to see if you have 12 volts on the input side of the fuse. Check back if that is all okay.

fuse # 5