I just installed a voltmeter from Hall to replace my ammeter per the instructions on an older forum post (piggybacking from the pink wire on the oil pressure gauge)... but when I hooked it all up, it didn't do anything. Then I remembered that the ammeter stopped working after I hooked up my one-wire alternator (which I was fine with because I never looked at it anyway).
I'm an electrical dummy (clearly!)... so any help to get the voltmeter to work with my upgraded alternator would be greatly appreciated. Thanks.