Where do the yellow and purple wires go on the 1966 Buick Wildcat starter?

In a 1966 Buick Wildcat, the yellow wire typically connects to the starter solenoid's terminal marked for the ignition switch, while the purple wire is usually connected to the terminal for the starter motor itself. Always refer to a service manual for your specific model to confirm wiring details, as variations may exist. If in doubt, consulting a professional or an experienced mechanic is recommended.