Tefifon Remote Control

This is the housing for a self built remote control and the plug for a Tefifon KC1.
https://en.wikipedia.org/wiki/Tefifon
The remote powers the two built in magnets of the Tefifon and allows to jump up or down
in the groove.

To complete the remote control you need two push buttons (diameter 7mm), a 3 pole cable (i.e. headphone cord), a flat piece of copper and 2 4mm banana plugs with threads.
I have included a drawing of the very simple wiring for the remote.