Time for mymopar service manual for your car. You may find color coded wiring diagram by googling that.
https://mymopar.com/service-manuals/
https://www.google.com/search?q=1970+mopar+color+coded+wiring+diagram&client=firefox-b-1-d&sxsrf=AOaemvLBJkl480AXkS9Uz6qrGoVzQEpl9w:1633537809764&ei=Ec9dYb-PLtylytMPwquPuAQ&ved=0ahUKEwj_24LHmrbzAhXcknIEHcLVA0cQ4dUDCA0&uact=5&oq=1970+mopar+color+coded+wiring+diagram&gs_lcp=Cgdnd3Mtd2l6EAMyBQgAEM0COgcIABBHELADSgUIOhIBMUoECEEYAFC3N1iGRWDLU2gBcAJ4AIABWIgBrwGSAQEymAEAoAEByAEIwAEB&sclient=gws-wiz