Ok folks, I may very well be the last human in the U.S. that thinks 6 volt is a wonderful thing. This is the best of that period of simple automotive electronics. Why; carries much more amperage (that's why the bigger wiring and cables), the big non-secret is two very wire brushed ground straps. Polish them every three months depending on humidity, also the frame or what ever the BRAIDED cable is attached to AND be sure to attach a star washer. This combination also needs to be put into a baking soda solution every once in a while. I have never had any problems with six volt systems, I still race vintage sports cars and all but two are 6 volt. It's just a matter of choice and maintenance. Also never let anyone with a 12 volt system beg you to give them a jump, it will burn EVERYTHING in their auto's to a crisp. OOPS. Doc
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