67 Shows 3 wires off the plug on the regulator. One is the 904 green/red stripe wire that had me plagued. It is from the ignition switch and signals the regulator to work. There is also a ground (black/red-st) which attaches to the regulator body (at least on a 67).. The 1969 Ford Mustang Mach 1 Wiring Diagram was an engineering marvel when it was released in the late 1960s. It offered one of the most comprehensive wiring sets that could be found within any Mustang during its era, allowing for intricate and efficient wiring systems to power the iconic car.. Mustang Voltage Regulator 1968 1970.
ALT light cars is the 'exciter' wire that goes between the "I" post on the constant voltage regulator (CVR) and the ALT light. It must be in place on an ALT light car to enable charging.. 1969 Mustang and Cougar Electrical Drawings. I don't know if you can find it for free, but here is a link: 1969 Ford Mustang and Mercury Cougar Wiring.. The 1969 Ford Mustang wiring diagram provides a detailed schematic of the electrical system in this classic car. It covers all the necessary wiring connections, circuits, and components that make up the Mustang's electrical system.. The charging system diagram shows the wiring connections for the alternator, voltage regulator, and battery.