Can I do Mod Wheel Vibrato with an SEM?

Hi

This is probably a dumb question that I just haven't thought through enough but I thought I'd ask anyway.

Is there a way to use a keyboard's mod wheel to introduce normal vibrato (oscillator pitch mod) in a Tom Oberheim SEM-Pro? I don't see any built in way to do it but maybe I'm just missing something.

Thanks!
Scott