Re-Wiring 1975 Plymouth Duster
Not expressing what direction you can go, that is up to you, but: I made these charts from a 1975 Dart Swinger manual.
What they show in the manual is a backsided twisted view of the Bulkhead connector.
As mentioned earlier you need to disconnect every connector and clean them.
Become familiar with which side you are looking, and good luck.
Also, there is the "Seat belt safety interlock system" that has 17 wires, I cut all of them out. You will need a factory manual to know what to cut out, if you do that.