the early 80s, prototypes of future tech like steering wheel controls and av screen GPS

a 1984 Chrysler Corporation passenger car equipped with multiplexing has its controls mounted in a stationery hub on the steering wheel.

With the aid of a computer, the multiplex car uses electrical impulses and low current to operate control functions on a pair of wires instead of having separate wires for each function.

Replacing fumbling with paper maps in the Chrysler Laser Atlas and Satellite System, a new concept to provide drivers of the future with a space age vehicle navigation. Chrysler engineers have developed a simple, easy-to-use system for accessing a vast amount of map data that is displayed on a nine-inch color television screen mounted in the console area of the vehicle.

https://libwww.freelibrary.org/digital/item/39731
https://libwww.freelibrary.org/digital/item/39732