Your "A" diagram cannot work- - - -the starter would run all the time. "B" is the only possible way it can function.
Jerry
If "A" is wrong then the assembly manual instructions are wrong.
It looks to me that the instructions are showing the battery cable and
the neutral safety switch wire are connected to the same solenoid terminal.
Be careful when wiring using colors as your guide. Always use function. Check to see where a wire goes. Check that it matches the diagram for the year. Buzz it out. Purple shmurple. "B" is more correct but maybe not totally. These crazy hard to read wiring diagrams for AD show solenoid start and foot start wiring. Why two battery wires from ammeter to battery? There is no purple, AKA violet, in the 1954 wiring diagram regarding starting wiring? I have never seen anyone use a drawing sheet for wiring, but maybe it's OK. You are supposed to have foot start? Pink wire missing in second pic.
"B" does seem more correct.
Yes I agree, it is hard to read the diagram when they show solenoid start and foot start wiring together.
I added the 2nd battery wire from ammeter to battery, because everything (ignition, light switch, regulator)
is fed battery power from the ammeter. Maybe the 2nd wire is not needed.
There is purple colored wires in the assembly manual automatic trans. instructions photo I uploaded.
I'm not supposed to have foot start, 1954 trucks equipped with automatic trans., came with solenoid starter.
I didn't include the pink wire because it is not in the starting circuit. The pink wire energizes the coil when the key switch is in the ON position.
But the pink wire is in the automatic trans ammeter to starter switch harness assembly. Check assembly manual instructions photo I uploaded
