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**spudder** · 03-13-2019, 07:43 PM

Like stated above, it's as easy as tapping into a pink wire on the back of the instrument cluster. From the other terminal on the voltmeter, run a wire to a clean ground anywhere close.
The pink wire is 12 volt hot with key on.
I would test the voltmeter on a battery source before installing it to determine which terminal is +.

03-13-2019, 07:43 PM	#10
spudder Active Member Join Date: Aug 2012 Location: Central Illinois Posts: 103	Re: 66 c10 Voltmeter Conversion Final Wiring Like stated above, it's as easy as tapping into a pink wire on the back of the instrument cluster. From the other terminal on the voltmeter, run a wire to a clean ground anywhere close. The pink wire is 12 volt hot with key on. I would test the voltmeter on a battery source before installing it to determine which terminal is +.