Don't laugh, (see "quattro", above) but if you'd paid top whack for a quattro, brand new, and not specified a radio/stereo, you'd have got a car with a natty bit of plastic stuck in the dash... The stereo list would have been similar to this 1983 list...
But the poor buyer had to stomp up the last little bit to get one, even when buying a Ur, brand new...