In the process of the alternator upgrade, and the one thing that has me stumped is the wire size that should be used for the new sub-harness.
Following a great how-to from the U.S. forums and one guy made his own harness using 10 and 18 guage wires (diagram attached).
Looking through the stores around me though and they all come with mm measurements (both outer and MM2), as well as amp ratings.
Anyone able to tell me what I should be using? Given the alternator is 40 amp, and I have a fuse for 50amp, should the thicker wire be at least 50amp rated? Although that seems thicker than the 10 guage that the U.S. guy used.