Originally Posted by Larry Tappen
...i'm going to remove rubber wire plug and splice and solder the wires and go from there...
The only reason Ford used plugs and receptacles is to make installing the wire harnesses fast and to make sure none of the wires are crossed. In short, 'you can't get it wrong'.
I suggest you use crimp connectors instead of solder. Many times, I will take a #10 (yellow) ring terminal and cut the ring off. Then, stick both wires to be spliced into the terminal sleeve and crimp it. This is the best connection possible because it offers the least resistance.
Glad you found the melted plug. Oh and... Use a continuity tester across your starter solenoid with the wires removed. - Dave