Didge, SSDave has a point. The amp guage avails itself to high amperage running under the dash, and the potential for fire, if there's a short due to abrasions of a carelessly run wire. If the original wiring is there, check it for grounds first, before hooking it up. Basically, the amp guage hooks up to a shunt located close to the battery. It is a small plastic block, running from the positive side of the battery, to the block, to the amp guage, back from the amp guage, to the alternator. All of this wiring carries the amperage the alternator is putting out. The guage measures this. Modern day cars use voltage guages due to their simplicity. They can tap in almost anywhere in the electrical system, as they only measure the voltage. They do not need a dedicated path to work. Thus, you eliminate excess wiring carrying high amperage. You can run the amp guage, if your goal is to restore the car, just be careful you try to duplicate the factory wire routing, so it doesn't have a chance on chafing on sharp edges, and short out, or worse, start a fire. Otherwise, I'd go with an aftermarket voltage guage, if you feel you need one. On the amp guage, use a 10 guage wire, with soldered connections, and shrink wrap, to ensure it won't give you charging problems, as the alternator output travels through the guage first, before it charges the battery. Good luck, Darren
[This message has been edited by Cameano (edited 10-16-98).]
[This message has been edited by Cameano (edited 10-16-98).]