Are the schematics for NADA Series IIa different from all others? I am in the process of rebuilding my 1971 IIa, 2.25 petrol, headlights in wings, negative earth and have not found a schematic that matches the wiring. I purchased a workshop manual from Autobook and downloaded one called the Green Bible and neither match my wiring. I don't mind purchasing a Land Rover Workshop Manual but I'm concerned that it is not going to help.

 

My 1963 Series 2 was Canadian, so it was NADA. It was pretty much exactly like the wiring diagram. I wonder if your late model S2A wiring more closely matches Series 3 wiring? (This is only a guess on my part).