This could be the answer. I have a 6 v system. I would like a radio-12v. Trying to decide if I should change truck to a 12v battery ( and all that entails ), r/r 6 v generator with an alternator ( and all that entails ) or you are saying I could use a "6 to 12 converter" . That would seem the easiest/ least costly. My intention is a rebuild to drive around town and would like a radio. Thanks for your advise!