dome light and speedomator,not working

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?:frown:

There should be a fuse box under the hood as well.. I would look there as well.

yes we have looked under the hood, but as yet to find anything that resembles it, if u or anyone has any ideal where it is under there, please tell me, it would be much appreciated.,,,ty

They are typically on the driver side under the hood. The fuse box will be protected in a black plastic box. It should say "Fuse Box". Under the lid of the box will be a diagram that will help you determine which fuse would best describe what you are looking for.
I hope this helps.