Alternator not charging + multiple meltdowns…HELP!!!
You lost me with the blue/ whit tracer. You talking about the "ignition run" line coming off the ignition switch? You have have suffered a shorted alternator field
Run over to MyMopar and download the 71 shop manual. In this case, Plymouth. Also go to the wiring diagrams and download the 2 page aftermarket diagram. This is simpler in some ways than the factory manual and somewhat easier to follow "in some cases" BUT they leave out a lot of detail.
Ignition switch detail from page 382 (8-161) of the 71 Plymouth chassis manual