I'd assume the short answer on the A/vox is
NO.
Most after market cruise modules hook into the wire that controls the throttle. The smart has no such wire, not near the peddle, not in the engine. The only two I know that will work with a smart are listed above, and one is still in development.
The MDC cruise module for the 451 uses the 450 stalk, which is slightly off color. But honestly, I can't tell it's not stock on mine, even in direct daylight. Had mine installed about a week now, install takes about 30 mins, simple. If you can change a stereo, you can install this mod.
