Manual - Complete Electrical Schematic - Free Download 2.6 MB Downloadable PDF file of the complete 1967 Mercury Cougar electrical wiring diagram used by Ford Technicians. This is a free download that you can add to your shopping cart. 67-68 COUGAR INSTALLATION - M!ustang Project PDF file67-68 COUGAR INSTALLATION All of the equipment illus-trated in this manual was proudly manufactured in the USA by Mustang Project a SafeCode Inc. enterprise. For accessories and spare parts please visit us on the web at: wwwangproject with original factory wiring which have damaged or non functional electro-mechanical sequential modules. Diagrams / Schematics at West Coast Classic Cougar :: The Diagrams / Schematics at The Definitive 1967 - 1973 Mercury Cougar Parts Source Free Diagrams and Schematics for the 1967 through 1973 Mercury Cougar 67 ignition switch wiring | Mustang Forums at StangNet When turning ignition switch once (+ to accessories) and once again (to run starter), which pins or wires gets connected on 67 coupe? Is there any discussion about this? I can't believe I have not found such wiring diagram showing this. Also, what is on the threaded fastener at the back of..