HI, I'm having an issue with the cruise control on a RS200. Basically the '+" & '-' buttons on the steering wheel do not do what they should. The '+' button 9 times out of 10 does nothing (but sometimes works correctly), whereas the '-' button both sets the speed and increases speed if you press it quickly. I've read through a number of posts and people have pointed to a brake pedal switch, but would that not deactivate the whole thing, rather than messing with what the buttons are supposed to do. It's not a big issue but wouldn't mind it working right if it is possible. Thanks.