Now the steering wheel was in place it was time to think about how to get electrics into the wheel, ie for the horn etc.

As I’d like to retain the option of more than one button I wanted more than one wire…

In the end I decided on a mini DIN plug, identical to the common “PS/2” keyboard/mouse plugs/sockets except with more pins. This is a perfect fit to go down the centre of the steering shaft.

The wire will run down the inside of the shaft, out and then use a clockspring.