My home has an existing Elan home automation system that’s only been used for audio for the past few years, but recently stopped working. Was looking to change the system over to a Sonos system and was looking for the best way to go about this. Have around 5 zones in the home with anywhere between 1 pair of in ceiling speakers to 4 pairs of ceiling speakers. They currently run on Elan Z generation amps. What Sonos products would I need to tackle this?