[Sak kitty]

1 you can go to the parts store and see if they have a plug to fit the new solenoid and then splice your wires into it.
2 put protected ends of the appropriate type on your wires and plug them in Individualy.

 

[Sak kitty]

Old style Ford relay off of a pickup that mounted on the right inner fender would work probably. just throwing some ideas out there.