hello everyone, i have a 1950 volvo pv444 which i use in the uk, not many here! i want to fit a 12v radio/cd player, but its a 6volt system, any ideas on a step up converter? i thought about a 12v batry in the boot and charge it when its flat or add a 12v solar charger,, if you would like any photos just email me billy.charisma@ntlworld.com