Well I found out why my Ignition warning light wasn't working. Last time I was back behind the gauge cluster I had run a white wire from the ignition switch to the voltmeter but forgot to run a white wire to the warning light. Doh! Can I now just run an additional white wire from the IGN switch to the warning light and leave the voltmeter hooked up the way it is? The other terminal on the voltmeter gauge is attached to ground?