Source google image: https://www.benzworld.org/forums/attachments/unimog/373002d1304290007-wiring-diagram-color-breakdown-1970-406-001.jpg
Schema electrique unimog 406
Source google image: https://www.benzworld.org/forums/attachments/unimog/373002d1304290007-wiring-diagram-color-breakdown-1970-406-001.jpg