I'm not sure if this will help ya or not but here goes, I recently bought a pc game controller that had software with that would allow you to map keystrokes thru your controller. The program would run it the windows background, all you would have to do is make button 1=ctrl, 2=alt and so on. So when I went into mame and hit button 1 it saw the alt key. I don't know if your steering wheel came with software like this or if you could find somthing on the net?