1971 Slant-six ballast resistor ID

You guys are sooo close.
The brown 14 ga wires are easy. J3 is power when the key is in start. J3A connects to the coil.
The second dark blue wire is almost certainly for the alternator field and regulator.
It's probably simply the difference between production and the engineering drawings. Concept is the same but execution is different.

One of those is probably J2 (power when the key is in run)
The other J2? either connects to the voltage regulator I terminal, or a splice junction, or an alternator field terminal.
The second two are only possibilities if the car was equiped with the ground controlling electronic voltage regulator. My understanding was that was introduced across all models/options in 1970. But I don't know how things were done with cars sent overseas for Simca.