[JayJay]

I got a 6V to 12V adapter from Bert’s and wired a double cigarette lighter plug into the 12V side with the 12V negative to the side of the plug. I use one plug for my CB and the other to charge the phone through a USB adapter. Works great. I put a 5A fuses in the 6V negative side and 12V positive to protect the voltage adapter. You just have to be careful that you keep the 12V side isolated completely from the 6V side.

In hindsight, I spent so much time and energy screwing around with this that I should have probably converted the car to a 12V system and been done with it.