[Early_S_Man]

Well, it seems like if you can isolate the problem to a particular fuse, you should be able to isoate the problem to a particular lamp assembly. Have you pulled all of the bulkhead connectors loose?

Unless you have four-legged, beady-eyed varmints chewing on your wiring somewhere, the problem is likely to be corrosion in one of the lamp assemblies. if you take all of them apart and clean them, you will likely find the problem!