ately switch to the line-in jack if it detects any audio being played by the device on the other end. Without this feature turned on, you have to manually switch a Sonos speaker to the line-in input before you can hear the audio.</p>

<p>With a device like the Echo Dot (<a href="https://sixcolors.com/post/2016/02/getting-sonos-to-work-with-airplay-and-overcast/">or an AirPort Express</a>), you wouldn&#8217;t want to have to get out your phone and launch the Sonos app before you could even hear what was goin