Guage pins

Wondering if the pin that came off with the conector is for guage lights
One seams to have been soldered already
U can see one is missing

Also is it possible and safe to start the car without it installed
Car is a 70 340 duster

View attachment 1715281879

View attachment 1715281880
I've soldered some, but I found little brass screws and nuts that are the same diameter and same height as the pins .
This stopped the heat that only hastens it decay. And being brass well the connection is better than original .
Hope it helps
Peace