i have a 1994 chevy cheyenne,has the 350 v8, and the motor has been redone, ok, my dome light and my speedomator is not working, and i have tried everything i can think of, put a new bulb in the dome light and stilll nothing, won't even come on. i have been told tht they work together on the 1992-95's and if one goes out then the other one does not work, but i am wondering if there is another fuse somewhere i am missing? checked the fuses in the dash box and all is good. so would someone please tell me what is wrong with this?