I've made adapters for a couple of people to use standard 6 bolt pattern wheels on a DFP, I could make one for you if you like for a small cost. Certainly a lot less than the £90 a Frex one costs. It does essentially what the Frex adapter does, but without the buttons/paddles, and supports a wider range of wheels. Personally I took the center out the original wheel and mounted it to the new one, to retain all the buttons.
You can fit an aftermarket gearknob to the sequential shifter easily..for the DFP pedals you can stuff a bit of dense foam under the brake pedal to stiffen it up a bit, and using teflon grease on all the moving parts improved mine somewhat.
Heres a couple of old pics of my wheel mounted, unfortunately I don't have any pics of the adapter by itself yet, and I can't find the USB lead for my camera at the moment.
i made a simple adaptor out of wood for mine. I just cut out a round piece of wood about 8mm thick and made it just big enough to screw onto a 6-bolt wheel, and then put the appropriate holes in the middle to screw it onto the DFP hub. Took me all of about 10 mins to do and it works perfectly. I can prob post pics if someone wants to try it
An application similar to monoleds but designed for the DFP, then borrowing the wiring for one of the DFP's leds and sticking a bigger one on there, would work in theory.
Or you could wire one in via a USB port quite easily, to keep it tidy, if you wish to put it on the wheel, you could have it running back down the main shaft, and make a small hole in the back of the DFP case to run it out of.
Oli, as far as I know theres currently no program designed to do that with the DFP, only the momo racing. Which is why I said in theory its possible.
As far as wiring a shift light in through USB or RS232, have a look over at the RSC hardware forum, a few people there have done things like this and shown how they did it.
Oliver, HERE, is a link to the wireing scheme of the DFP's wheel itself. For if you would like to use one of the original leds. I've also attached it for your ease. All credit goes to Hoopstar as also specified on the image itself.
i have already wired it up but all i need to do now is get a program so i can make it a shift light at the moment its on all the time. Does anybody know where i can go to get this program?