I've recently acquired a Fireball button deck and the required gadget board to go with it but have found little information about how it's installed or how it works. I saw a brief video stating that the gadget board hooked up to the backplane but that's about it. So I'm trying to get this figured out, I believe the gadget board wiring harness just plugs into the spare power port but I'm not clear on where the usb cable plugs in. I'm also not sure about how it works or what, if any, game setting changes I'll need to make. If anyone could offer info on how this is installed or works it would be most helpful and appreciated.