Hoot, you may want to check for the underhood fuse. Some people remove them if they have their hoods up for extended periods (so as not to run down the battery) of time, ie. engine maintenance, Corvette shows. etc.
On my ’96 the fuse is above/near the driver-side parking light assembly. It may be different on your ’87. There is a cap that pops open to reveal the fuse. If you have trouble spotting it, follow your electrical lines from the underhood lights to the fuse.
Let us know what you find!
B17Crew