This is from the wire diagram, page 2-E7. This diagram can be found in the "How tos" section.
FYI, the "blind circuit" where it goes into the plug is just a short section of wire that is put in the terminal with the resistor wire to make a good crimp on the terminal. The resistor wire's gauge is too small to be crimped properly without it. That is a complicated wire assembly that goes to six places, as 297 connects to 904 (another resistor wire) at ignition switch A terminal. Notice where 297A goes to the fuse panel? This could shorten your search- this goes to fuse 1, which is flashers, radio and backup lights. If any of those work then you have power as far as the splice. Also, wire 30 powers the alternator warning light- does it light when the key is turned to ON- not started?
This is from "How Alternators Work" also in the "How tos" section