Well, I would not give up just yet. There are enough common colors that I think if you joined up the ones that are the same (which I have a feeling would be right), you're most of the way there. You can't hurt the motors by hooking anything up wrong and testing it out. Sending two negs to the motor does nothing, sending 2 pos to the motor does nothing. So a little trial and error should get you there. It took me a day of messing with the Honda one and recording the wiring combos I tried and the resulting actions of each button. After a while it's easy to figure out which wire does what. I googled around for a bit and could not find a diagram that had an orange wire.