Big 3 Upgrade: I've searched, but...
#23
Also, 1/0 is a lot bigger wire than needed, I have access to it cheap is the only reason I'm using it. If you keep the existing wiring, you don't need to run as large of wire as it will have 2 paths to follow.
#25
My Blazer shows over 14v at idle with everything on now, and it still has stock wiring. This is the second step toward a winch. First was the 78 series dual post AGM, next will be the 145A alternator, then the winch.