I don't have a tutorial for how to make it but it's not hard. You could use a memory card if you can't find a communicator, you would just need to add a button to it. Basically the port that plugs into the controller is just a USB port with a special connector end. You just wire the USB port to the appropriate pins on the connector and wire the button to the yellow wire pin and the ground pin. There are many tutorials available for doing the yellow wire remote power mod, they do a much better job explaining it than I can. I just wanted it to be modular instead of modding a controller to place the power button directly into it. I'll see if I can draw up a diagram you can follow. The diagram is looking at the front of the communicator.