I recently purchased an Amazon Echo Dot to go along with my SONOS system which currently consists of a SONOS Play 1 (with Alexa) and a SONOS Connect that I have connected to my vintage home stereo system. I was told by the sales person at BestBuy that the Echo Dot would "work" with my speaker; so I was thrilled to purchase an inexpensive smart home device to add to my system. After setting up my Echo Dot with the respective SONOS and Amazon apps and connecting the aux out of the Echo Dot into a set of good computer speaker with a nice sub and I was ready for action. I began developing the Amazon skills to allow it to send commands to my SONOS units and was able to command my Echo Dot to play songs on my various SONOS units BUT was completely disheartened when I learned that the music that was playing on the SONOS units would not be able to be grouped or synced with the output of the Echo Dot. I've been playing with the idea as to whether adding another (inexpensive) Echo Dot which I would connect to the aux input of the connect as a line input device on the SONOS Connect to see if it would allow for the Echo Dot signal to be played in unison with the all of my devices. In essence like an extended cross platform device group. But before I go out and spend more money on finding an affordable solution to my conundrum I wanted to leave a post here asking whether anyone else in the SONOS community has had success with trying something like this.