I believe have different version of wiring for.main drive circuit. My shunt resistor is just one big coil with no taps. Also my motor is only 3 terminals. The drive circuit is always on, unless in 0 position. I think thats what owners.manual states too. I'm going to use a keyed sliding door lock, with a made mount to replace steering lock for anti theft since drive circuit always active. The sub circuits are monkeyed with and archaic. I'm going to rewire new harness in a simplified and straight forward manner. Wire just hanging from dash, dash homemade replacent. Each circuit will have its own color code and own wiring, not the cost cutting done at factory to save on money where circuits are tapped off each other when can. I'm surprised such an expensive car for its time has such shoddy wiring unless hap hazard rework done. Will make own wiring diagrams of new harness for easy reference. May install LED headlights. Each speed wiil have its own volt meter to accurated track battery voltage drop. Easiest way since original speed selector used. Voltage can be seen at any speed needed for driving conditions. Cruddy add on amp meters are to be scrapped, volt meters are now self lit for night driving. Will install 12v socket,usb on dash for cab. Etc pics to follow...