A12 - Any pics of the factory connection for the tach harness at the back of the fuse box. I cannot find this info in any harness diagrams either. I have been told it is connected to the accessory fuse.
Do you know the color of the tach wire? Would it happen to be dark blue (dk blue as shown in the '69 B-body Plymouth/Dodge wiring diagram? If so then I hope this answers your question?
Mike
Mike, Thanks a million ...yes the tach wire is blue and your photo confirms the location @ the accessory fuse!!!! I have two 69 wiring diagrams (Dodge and Plymouth) and they do not show this blue tach wire. Your diagrams pictured above are the best I have seen. Any chance you can email them? If so, send me a PM.