Headlights, brakelights, heater, and gauges all dead?
OK time to step back and start over...........You have a factory service manual? If not go to MyMopar and download it.
MyMopar - Mopar Forums & Information - MyMopar Tools/Reference
THIS ONE HERE
http://www.mymopar.com/downloads/servicemanuals/1971_Plymouth_Chassis_Service_Manual.zip
This is IMPORTANT because I can tell you a page / figure number and you can look that up so we both see what both of us are thinking about
It is PROBABLE at this point that you blew the FUSE LINK which goes between the bulkhead connector and the starter relay. THIS IS the main power into the car interior
Page 368 of the manual above.....layout of the bulkhead connector
Page 372........engine bay wiring
See where it goes to "J?" The big no 10 RED at bottom right goes to the great big stud on your starter relay
(A1B-10R) "10" means no 10 wire and "R" means RED
OK time to step back and start over...........You have a factory service manual? If not go to MyMopar and download it.
MyMopar - Mopar Forums & Information - MyMopar Tools/Reference
THIS ONE HERE
http://www.mymopar.com/downloads/servicemanuals/1971_Plymouth_Chassis_Service_Manual.zip
This is IMPORTANT because I can tell you a page / figure number and you can look that up so we both see what both of us are thinking about
It is PROBABLE at this point that you blew the FUSE LINK which goes between the bulkhead connector and the starter relay. THIS IS the main power into the car interior
Page 368 of the manual above.....layout of the bulkhead connector
Page 372........engine bay wiring
See where it goes to "J?" The big no 10 RED at bottom right goes to the great big stud on your starter relay
(A1B-10R) "10" means no 10 wire and "R" means RED