Basic Outboard Boat Wiring Diagrams. 10awg for larger boats 5 10 loads is normal. However it does not imply link between the wires.
On a small boat sketching circuits in the boat outline helps you locate. Injunction of 2 wires is usually indicated by black dot at the intersection of 2 lines. 800 x 600 px source.
Sometimes the cables will cross.
However it does not imply link between the wires. Create your own. When you make your own wiring diagram use very large sheets of paper for clarity. Boat wiring boat wiring schematic ezacdc.