I’ve just moved into a new house and the previous owners had Sonos speakers installed throughout the house in the walls and ceilings. I think they are now legacy parts though and no longer work. I’d like to be able to upgrade them to currently supported parts.
They had a ZP90 and a tower of Zoneplayer 120s installed in the cupboard under the stairs and I believe they are wired to the speakers installed in the ceilings of the various rooms around the house.
What is the best way to upgrade them?