This is a USB-powered G29/G920 rim button box mod. This completely replaces the stock G29/G920 button box.

Software to run the wheel and a PCB to make the wiring easier can be found here. The wheel is set up as a gamepad/joystick. There are several guides online that show how to do this if you wanted to write your software and wire it up yourself, it's pretty straight forwards.

The hole pattern for the mount has 6 holes at a 56mm diameter with a 60-degree separation.

I use this wheel with a G29 quick-release mod that can be found here.

Materials:

M3 15mm screws x 6 M4 25mm screws x 5 M4 Nuts x 5 12mm buttons x 6 5-way Switches Arduino Pro Micro USB cable