David,
I don't think you are out of the woods yet. There are 3 main causes for fuse failure in these cars. They expand and contract with on and off current causing to break like a beer can. Putting in a new fuse solves the problem. A dead short will pop a fuse, and the short must be corrected. That picture leads me to believe you have the makings of the 3rd way these fuses fail. It looks like that circuit is constantly drawing excess current which is putting that fuse on the ragged edge. I suspect you have a relay that is tired and causing high resistance. I don't have my electrical books here now so I can't offer advice on what component it might be.

Peter

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