GitHub - bosim/socompd: A minimal implementation of mpd that relay commands to Sonos. So this program acts as a mpd proxy i.e. you can use a mpd client for controlling your Sonos
Ikea Symfonisk Amp Modification Guide - A much cheaper Sonos Amp
Sonos says goodbye to playing your locally stored music
Sonos Connect with Wyred4Sound reclocker modification | HFA - The Independent Source for Audio Equipment Reviews
Made a 5 zone sync'd fake Sonos: Fauxnos 2000 : r/homeautomation
Add Aux to Sonos Using Raspberry Pi : 26 Steps (with Pictures) - Instructables