Gauge wiring help

[Tomdeg]

Hey All,
I have a repro oil pressure gauge. Can someone chime in on which wires go to which terminals. I've numbered them 1, 2, and 3.
Thanks so much.
Tom

[Coralsnake]

https://www.saac.com/forum/index.php?topic=10916.0

[Tomdeg]

Awesome! Thanks.
Is the wiring the same for the repro gauge as factory? The repro does not use the cup to mount it and the light socket plugs directly into the gauge. The ground wire ( I'm assuming the bottom lug) does not ground to the outer case, so it would need to be grounded to make the light work