I've read and seen in many forums that PS2 controllers work on PS1, even wireless, some say that basically all PS2 controllers should work on PS1. And it's not just a theory, people who have tested themselves and use them to play games on their console have said that. On some of them is stated that it works for PS1, PSOne, PS2, but some doesn't list that they are compatible with PS1, yet they work on PS1 console as well. I'm curious exactly about Logitech PS2 steering wheels since they don't state that they work with PS1 but as I said, even controllers who don't list that they work on previous generation, actually works. I can't find any information about this on the net. I'm thinking about Logitech Driving Force Pro, which is official Gran Turismo edition, would it work with Gran Turismo series on PS1 console?