I am doing some re-wiring in my 73 Safari. Interior skins are all off. I trying to get up to speed on the electrical side of things. On the 12V
side, I notice how it seems all the grounds are connected together (see pic) in the ceiling so just one or two larger white grounds going back to the box. As I am rewiring, I was planning on running one ground wire for each circuit back to the bus bar. Is there an advantage one way or the other to bring the grounds for each circuit to connect to the bus, or connect them all together (as they are now) in the ceiling to a larger one then attaching to the bus?
If I have one ground for each circuit, I am assuming I can keep the same wire size (14 gauge for lights, for example). If I combine them together, I would obviously have to go up in wire size based on the amps.
Any hints would be appreciated.