Before you assume that it's really ADC values, keep in mind that some steering wheel interfaces send digital coded data values instead of just resistance values. In those cases, you need an interface to do the conversion.

However, assuming that in your case it really is resistance values, then I, too, want to do this. My friend Tod's GM-to-Sony interface puts out resistance values that are slightly off and therefore only trigger the empeg functions intermittently.

We could rip apart his dash again to either hook up a serial cable or read the resistance values, but it would be easier to just see them on the screen.

Mark, any chance of a Hijack function to do this?