How do they do it?

[t.o.]

Couple years ago Luxes advertisted they only used two wires to replace the complicated car looming to control everything in the car. Anybody?

 

[audioguru]

Everything has a processor and has an address. Data is sent and something with that address gets to do what is requested.

 

[kchriste]

Probably something similar to this:
https://www.yamar.com/DCAN250.html

 

[t.o.]

It's very good information. Thank you very much.

 

[Hero999]

This thread contains some vital infromation so I'm just adding a couple of key words to this thread:

CAN-bus
DCAN250 Transceiver