Ammeter to voltmeter conversion
On the rally panel circuit board,,, The pin at about 9 o'clock position is switched 12 volts that feeds the voltage limiter. You can tap this wire behind the connector to power the volts gauge. I used the wire clipped off of a noise suppression capacitor. I used a dremel tool to hog out that terminal a tad so it better fit the metric stud on the sunpro volts gauge. (A ring terminal would work there.)
The ground wire first goes to the phillips head screw at bottom of center pod. 2 wires in this ring terminal. The second wire is about 4 inches long with male spade terminal. Addition length of wire with mating female spade terminal goes to a screw under the dash somewhere with another ring terminal.
My result is everything will unplug if/when I need to pull the panel again. Entire instrument panel is better grounded.
I probably have pointed this out before but again, the round screen of the sunpro gauge is well captured in that gauge can. The little plastic screw ears are absolute minimal, easily broken but that screen couldn't move.
Your larger triangular screen is floating in the housing. I couldn't expect those ears to support this screen for many years to come. Some scarp plastic and 2 part epoxy created some added support.
On the rally panel circuit board,,, The pin at about 9 o'clock position is switched 12 volts that feeds the voltage limiter. You can tap this wire behind the connector to power the volts gauge. I used the wire clipped off of a noise suppression capacitor. I used a dremel tool to hog out that terminal a tad so it better fit the metric stud on the sunpro volts gauge. (A ring terminal would work there.)
The ground wire first goes to the phillips head screw at bottom of center pod. 2 wires in this ring terminal. The second wire is about 4 inches long with male spade terminal. Addition length of wire with mating female spade terminal goes to a screw under the dash somewhere with another ring terminal.
My result is everything will unplug if/when I need to pull the panel again. Entire instrument panel is better grounded.
I probably have pointed this out before but again, the round screen of the sunpro gauge is well captured in that gauge can. The little plastic screw ears are absolute minimal, easily broken but that screen couldn't move.
Your larger triangular screen is floating in the housing. I couldn't expect those ears to support this screen for many years to come. Some scarp plastic and 2 part epoxy created some added support.