I just bought a "smart wired" home which has wall plates with binding
posts for the speaker connections in various rooms, a bank of push
on/push off buttons to control which rooms have the sound turned on
and a wall plate with 3 pairs of binding posts for input. I also have
several places where wiring which appears to be speaker wiring is just
hanging out of the walls. Is there a way I can test which jacks are
on with which switches using just a multimeter or do I need to drag my
speaker around the house to test each one?

Thanks,
Riffraff