Rally dash oil pressure gauge issue.

When I repaired one of those pins I used a brass brad in from the back.
Not sure I posted pics. Lemme look.
edit An escutchean pin not a brad.
Here in this post How do I replace these metal pieces from my instrument panel?
The solder is just visible in this photo


There's a video I posted testing the IVR with a car battery and an analog meter.
Used aligator clips and resistors to test the gages.
I think its in Steve's rally dash redo thread.
edit:
Fried gauges?

and this one has good info
Test IVR