I salvaged ANOTHER military surplus Control Display Unit (CDU) keypad, rewired it to a Teensy 2.0 USB controller, and mounted the whole thing around a VKB Gunfighter & Kosmosima joystick. Now with
Rewired - Advanced Input for Unity | Page 85 - Unity Forum
Rewired Documentation | Rewired Editor
Rewired Documentation | Control Mapper
Rewired - Advanced Input for Unity - Unity Forum
Rewired Documentation | Control Mapper
Input in Unity made easy (complete guide to the new system) - Game Dev Beginner