1971 Demon Insturment Cluster Question.

Does anybody know for sure which terminal on the back of the insturment cluster the voltage limiter plugs on to?? The first picture is of my old trashed original cluster and the second picture is of a restored cluster that came with the car when I bought it, the voltage limiter is plugged on to a different pin on each cluster. I sure don't want to fry my new cluster!!

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