Replaced the ground cable last weekend with 0 gauge cable I got on line - very flexible. Lugs from auto store and a $15 crimping tool (takes a sledge to crimp) from online. I only replaced the original three grounds - body, frame, engine. Running more ground could caught ground loop currents that cause inefficiency, power loss and other problems. It's always better to run all ground point to one single source, preferable at the power source. Any electrical engineers want to weigh in?