[P.S.]

Cod-

The fuse is wired between the starter connection and the ammeter, exactly the way the starter mounted fuse block is wired into the circuit.

Simply pull as much slack out of the wire to the starter lug as possible, and disconnect the other end from the stud in the junction box. Pull the wire inside the car and connect to an inline fuse holder. Run wire from the other end of the fuse holder to the stud in the junction box where the wire from the starter was previously attached, and you're good to go. It's now hidden, protected from heat and weather, and still protecting everything behind the starter. And, in fact, it is a lot safer.