Since it’s not uncommon to delete the ammeter and have to add a volt gauge somewhere, here’s a solution you may not be aware of.

This LED needs a 14mm hole, power, ground and it will tell you everything a volt gauge will.

On my dash, i determined a voltmeter wasn’t mission critical enough to dedicate a gauge slot to, so I recently went to this LED version.

As you can see in the image, it provides color and flashing feedback depending on voltage conditions, which is pretty neat.



eBay link as of 12/10/18
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F190401283689