Excellent, so I'm set with the plugged vaccuum tube ID, the mystery tube off the sunroof question and the issue of radio needing to be on before antenna will work.

Does anyone have any idea what my 2 "extra" round pin connectors are near the main antenna connector in the trunk?

Any common symptoms of a vaccuum pump about to fail? If you tell me it's normally a screech at light throttle under very limited RPM range I better take a closer look at that pump!

Thanks for all the great info!