The Sonos Port Audio Adapter lets you finally use your old, beloved devices as if they were brand new. Well, you can at least pretend your home speaker system is a modern speaker while enjoying the sound you love. Replacing Sonos Connect, this wireless music player lets you stream music to all your connected devices. Hook up your vintage stereo system to this music streaming device, and you can even control it with the Sonos app. Additionally, you can use..