Sounds like OP read my post. Lol.
Fooled card goes into the fooler/TSE unit. It’s a mystical box of sorts best I can tell. I am just going through the motions till I get it to work myself and understand what it is doing. Best I can tell the MPU looks for a top box controller that is usually present in the OEM and very difficult to find original lease games surrounds. I had a couple in my time and still have an epic surround. However I ran out of time and patience and initially planned on swapping games, I stooped pursuing the project and sold a very very rare surround and the controller boards. Then had a year or two of not having time. Now I am back to it and completing my machines. TSE Foller to run my game since I no longer have the control boards and surround. Adding emotive lighting kits etc.