Blue,
In this schematic the engine negs are connected by a busbar but is not really needed.
My busbars are for accessories and I used #8 MARINE (tinned) wire. Run the neg from the house battery. I will warn ya about Blue sea systems diagrams. Although they are correct, sometimes an inconsistant layout can get you confused.
The key starter is optional and not required. ONLY the ground which went right to my battery.
|