Turn-honk-lights...

This little do-everything switch cost me a whopping $18 on Amazon. Aside from ignition and wipers, this will handle the (very) limited switching requirements on the car. I think.

[For those that care, the part is intended for use on a tractor. Again, I think. The part is listed on Amazon as "Solarhome New Headlight Switch 5T057-12242 5T057-42242 for Kubota 588I-G 688 888 758 988 Harvester Components RS19."]