Is it possible to keep old style electronic VR with a dual field alternator?

Joey4speed said

Cosgig,
Do you recall which wires you splice the newer style VR plug into?
Im trying to back track someone elses handiwork.

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There are 2 wires on the old VR, and the same 2 wires on the new VR, both units use the same color wires. The green wire is the existing field wire, and to add the 2nd field wire you splice it into the blue wire.