Are you still on the Forum---I found it interesting that you are running a wire to a volt meter, not the GEN light. I like that. Any cpmments?Thanks. Harold

Hi I was not able to find any wiring instructions on the website you suggest---any help would be appreciated.Thanks.

Not sure if this is what you are asking about but a voltmeter can easily be wired in regardless of what charging system is installed. One wire from the accessory terminal or anything related to it is all that's needed and a good ground. 

64F100 57FAIRLANE500