HELP 66 Mustang Backup light wiring under the dash.

chris1salazar · Jun 10, 2020

Im finishing up a buddy's wiring in my 66 and the last set of wires I cant seem to finish is the back up light wires under the dash.
I have 3 black with a red stripe wires.
2 are coming from the back up light switch from the trans through the fire wall and the other is coming from the rear through the drivers side kick panel.
How do the 3 wires get connected???????

badkarma11 · Sep 21, 2020

There is a 3 way female plug, probably with nothing plugged into it on the drivers side. The wire from the trunk attaches to one side of the backup light switch, the other side of the switch plugs into the center of the 3 way. I have the same car, different engine and I can't find where the wire from the lights is. I have the other wires.. If you haven't found it, this is a good reference for wiring:

1966 Mustang Wiring Diagrams - Average Joe Restoration

1966 Mustang Instrument Panel Instrument cluster connections, wiper switch, headlamp switch, ignition switch and lighter 1966 Mustang Ignition, Starting and Charging Alternator, regulator, solenoid, starter, distributor, plugs, ammeter and starter neutral switch 1966 Mustang Exterior...

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HELP 66 Mustang Backup light wiring under the dash.

chris1salazar

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badkarma11

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1966 Mustang Wiring Diagrams - Average Joe Restoration

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HELP 66 Mustang Backup light wiring under the dash.

chris1salazar

New Member

badkarma11

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1966 Mustang Wiring Diagrams - Average Joe Restoration

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