87 Silverado just up and died

[Slick Rick]

Ok, so heres the scoop...
I was driving down the highway and heard a rattling noise, so I start touching all sorts of things to try and pinpoint the rattle. I narrowed it down to being in the glove box region.
Soooo, I gave the dash above the glove box a whack and the truck just up and died. I checked all the fuses and wiggled all sorts of wires under the dash to no avail. I'm at a total loss and I dont know where to start looking for problems.
If you have any suggestions, I'm all ears lol

Thanks
Rick