Mustang Diagrams - Fuse Identification, Wiring Schematics 1979-2017 Ford Mustang Diagrams & troubleshooting documentation. Ignition System Wiring Diagram. Instrument Cluster Wiring Diagram. Keyless Entry Wiring Diagram. O2 Code Clear. 87-93 Fuse Box Diagram. Alternator Wiring Diagram. Belt Routing-Smog Pump/AC Removed. Headlight Switch Diagram. Fuse Box Diagram. Ignition Control Module Diagram 70 ignition switch assembly - 1969-70 Technical Forum For 1970 the pink resistor wire goes from the fuse box to the gauge plug in the engine compartment (standard dash) or from the tach plug (tach dash). The wire going to the ignition is green/red or red/green. These aftermarket ignition switches are generic switches, not Mustang specific. They will work, however.
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