Volt Meter instead of Amp Meter
Posted: Mon Oct 27, 2025 3:39 pm
I have a little extra time today, and since Monday is off to a good start, let’s blow some time on a project 
The Amp meter on my Patrol isn’t hooked up since I have a complete new wiring harness with modern fuse box and don’t want a full 50 amps running under the dash. I love ammeters because they indicate your charging state instead of battery voltage, but the downside is the fire hazard. With an ammeter all the charging current runs through the gauge and it’s too big a risk.
So, where to place the volt meter without cutting up the dash or hitting it with my knee? After careful consideration and trying a bunch of locations I settled on removing the ashtray and making a replacement with an integral volt meter. I don’t smoke and that ashtray has always seemed clumsy, so this could be an all-around upgrade.
I’ve got the metal cut out and formed to the curvature of the dash panel. (See photo). I’ll get it painted and mounted and then report back with a final photo.
The Amp meter on my Patrol isn’t hooked up since I have a complete new wiring harness with modern fuse box and don’t want a full 50 amps running under the dash. I love ammeters because they indicate your charging state instead of battery voltage, but the downside is the fire hazard. With an ammeter all the charging current runs through the gauge and it’s too big a risk.
So, where to place the volt meter without cutting up the dash or hitting it with my knee? After careful consideration and trying a bunch of locations I settled on removing the ashtray and making a replacement with an integral volt meter. I don’t smoke and that ashtray has always seemed clumsy, so this could be an all-around upgrade.
I’ve got the metal cut out and formed to the curvature of the dash panel. (See photo). I’ll get it painted and mounted and then report back with a final photo.