How-To Install A Turn-Signal Switch In A '65-'66 Mustang

16: The new switch is installed in place.

17: The collar is put in place over the new switch, and the switch is secured in place using the factory screws. At this point the switch is installed and all that's left to do is the wiring.

18: The new switch has the same type of plugs that install directly in place inside this factory connector. Each one has a little tab that holds it in place inside the connector, which can be pushed out of the way with a flat-blade screwdriver.

19: Once the tab is out of the way, the old wires and plugs can be removed and the new plugs installed in their place. Be sure to reinstall the factory shrink-wrap tubing that protects the wires from the column over the new wires before installing the plugs in the connector.

20: The six plugs have been installed into the main connector for the turn signals. The smaller connector being held here is for the horn. Be sure to remove and replace only one plug at a time so you don't get confused as to where each colored wire is supposed to be installed. If by chance you do get it mixed up, you can still use the wires in the female connector underneath the car's dash for reference.

21: Once you've installed the new switch's plugs into the connectors, simply plug the two male switch connectors (turn signals and horn) back into the car's female connectors. At this point, the installation is complete. Reinstall the steering wheel, reconnect the battery, and you're ready to go.