(I asked this on the end of the "How hot? Radio" thread so some may have missed it) Has anyone had experience with a 12/6 battery? (12 volt for running the vehicle and 6 volt hook up on it for the 6 volt accessories) Antique Auto Battery (www.Antiqueautobattery.com) quoted me $130.00 plus $20.00 shipping. Just wondered if this might be the easy way, albeit a little expensive, around the 12 volt truck, 6 volt heater & radio problem without having the ceramic voltage reducer melt a hole in the dash.