Hi;I still have the pictures but they show nothing as ewiring is scattered around under hood.Problem changing to 12 volts is so much 6 volt equip O/D etc.Gauges woirk fine discarge with ;lites etc just doesn't show any afect from the Alt charge.Did check it iis putting out 7.5.THE battery terminal of the alt feeds to the negative terminal one of the batterys.THis would be correct for a Pos grd system.All I was trying to do here was get the factory amp gauge to read the alt!Have enough other things to try to figure out would like to move batteries to trunk open up hood a lot.My other Cont.had orignally had a battery in trunk I assume for a booster.Thats a whole nother topic wire sizes etc!O/D doesn't work no one knows them anymore either,fixed my other one 10 years ago but forgot everything now.With an old car never need to worry about getting bored.Out to Back To The 50s show tomorrow10Kcars after while they all look alike.Again Thanks for the ideas.