need help with instrument panel!!!

here's my prob....all of the gauges don't work except the battery and gas ones.....even the milage one doesn't work....maybe a wiring problem??...not to sure....also, my right turn signal will not work when the headlights are on....works fine with them off....also works when i turn the 4-ways on.....o yea...it's a '89 s-10 4.3L.....so if any of you can help please let me know.....thanx in advance

id start with checking all the fuses. it may be as simple as that.

Worst case scenario (that I can think of)....you'll have to buy a new cluster.