Seems like an easy thing to pull off. Did you try this solution? Do you still use that joystick if you did? This would eliminate the need for an IPAC, correct? Of course, I would need to make sure the joystick had 6 or more buttons. I would still need an IPAC though to be able to have buttons like 'add coin', 'player one', etc... Or since I'm soldering, I could just use my old keyboard and solder those buttons onto that. Let me know what you think? Thanks.