Okay, I have a '67 Valiant, none of the dash stuff was working when I bought it except the AMP gauge and SPEEDO.

Then one day I hit a bump and WAH-LA! The gas gauge started working, along with the BRAKE lamp.

It was glorious for several outings then stopped working. A few bumps later, they work. Then it stopped. Then it worked again.

So I've got intermittent grounding issues.

The MILLION DOLLAR Question...

How do I fix this? Can I add an auxillary ground to the dash panel?

Muchos gracias, a thousand thank yous, blessed be the one(s) who can answer my most (un)grievous question!!