On your model I heard you can do this:
Hold down trip button, turn key to on postition (while still holding trip), press the clock button and release trip the clock button). Didn't work on my '03 jetta, I don't belive my year will trigger the MIL light for oil, I had to reset mine because a hose came off. What I did was take the ground wire off my batterie for 15 mins. It won't affect your radio and works perfectly.