volt gauge or not?

I, too, bypassed my amp gauge and routed the alternator to the starter relay. I ran new wiring and fusible links. I installed a triple gauge set of Sunpro's. The PO had cut out the radio bezel so I mounted them there. I wired the voltmeter with the switched radio circuit, no radio, and it reads pretty accurate. Wired the gauge lights to the illumination circuit for the radio. Used the factory 2 prong connector. I grounded it to one of the steering column mounting bolts. Ran the temp and oil lines through the firewall where the heater control vacuum lines exit. Notched the outer edge of the grommet slightly.