Wiring fire, advice sought!

redfastback said

yes, put in a voltmeter to monitor the charging system. rdline gauges can also make your ammeter into a voltmeter. only after a full moon though.

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I am planning on sending it off to redline to get the conversion done, but may be 5 or months before I send off the cluster. I just wanted to make sure it was ok to put a voltmeter to monitor charging system, but wanted to make sure I was defeating the purpose of the fix.
Thanks everyone for the help