I'm quite intrigued about something to do with modern F1 Steering wheels. There is a multitude of buttons, lights, screens on today's F1 steering wheels, but how are they connected electrically with the car? We see steering wheels "clipped" onto the cars, and popped off when drivers want to get out of the car. Does anyone know how the electrical connection is made from the steering wheel to the car? Could it possibly be a radio connection, or is there some type of ring(s) on the steering wheel shaft with brushes making contact from the stationary chassis side?
If anybody could shed some light on this it would be greatly appreciated!