I have a technics CD player and Denon turntable with PreAmp. I want to play through my Sonos system. (2 x Play3, 2 x Play1 plus Sonos Connect). Both the CD and Turntable have the Red and White cables. The CD also has Digital Optical Out. I can play either the CD player or Turntable by connecting the Red and White cables to the 'Analog Audio In' on the Connect. But is there a way of connecting both the CD and Turntable to the Connect so I don't have to keep disconnecting cables. I tried connecting an Optical cable from the CD player to the Optical cable on the connect but the cable, firstly, does not seem to connect securely to the Sonos Connect and there is no Sound. Any thoughts or solutions appreciated. Thanks Kevin.