Wiring mess behind converter panel

myredracer wrote:
Am just in the process of tidying up the mess 'o spaghetti behind the converter. Is there any reason why I shouldn't bundle the pos. or neg. wires (each in their own bundles) with zip ties?

Also, when I disconnected all negative wires and the ground wires from the buss, the radio stayed on. What would cause this? Not sure how it would still get it's negative supply.

I feel your pain. I spent 40 plus years building airplanes and fixing them. I use a good string tie more than zip ties. If you want to get fancy you could label them but that can be a lot of work for not much return. You can find out what wire goes to what with a good meter.
Bill