On July 12, 2017 at 22:22, Fins said...
Sonos, and forget the wiring.
If the ABUS system is working, yes.
What if it's not? Do they make ABUS systems anymore? If they do you could put a current one in and use Sonos or Heos or MusicCast as the source.
eta: looks like ABUS is still alive and kicking at Russound !