There is one little resistor in the Compass Module that dies. When this dies it kills the Compass, which kills a ground [I think], to the DIC. I have a working DIC, because of this resistor working, but there is something else in the Compass that has died, and prevents it from working. Guess it'* just the wonders of 80s GM electronics. I have put it on hold, however I will soon pick it back up to fix the issue. There was one post I had a while back giving some more info.. I will see if I can dig it up.
'89 SSE - GX3 -190k, 155k on body - Back for another ride.