Squareback Connection to Electronic VR
An isolated field regulator can be connected from a splice like this.
or this
Or any variation on that allows the regulator 'I" terminal to sense the system voltage after the key switch.
Your '65 was originally wired for a regulator that controlled the feed. So someone spliced wires to use the other regulator.
Unfortunately you found they used squeeze crimps which aren't very good for connections.
If the wiring for the regulator with the triangular plug is hassle due to cuts and splices, going back to the original regulation is always an option.
An isolated field regulator can be connected from a splice like this.
or this
Or any variation on that allows the regulator 'I" terminal to sense the system voltage after the key switch.
Your '65 was originally wired for a regulator that controlled the feed. So someone spliced wires to use the other regulator.
Unfortunately you found they used squeeze crimps which aren't very good for connections.
If the wiring for the regulator with the triangular plug is hassle due to cuts and splices, going back to the original regulation is always an option.