I want to be able to control the mouse pointer from my steering wheel. As regard the buttons, there's no problem, because the wheel base has two buttons on the right, which can be remapped to mouse buttons. Now, on the front left of the base, there's room to stick or screw a small device, which could be a trackpoint or a touch pad, or even a very small trackball. Do you know if any of these devices exist as an independent usb device? Any other idea?