The analog audio (RCA) connections above the HDMI connections on the back of the console of the Lifestyle V25 are meant to provide audio to additional speakers connected to expansion rooms off the main system. You still need to have an HDMI cable plugged into these inputs for sound to be present. If you want to connect your turntable, and the other analog inputs on the back of the system are taken up, then you can use the analog connections on the front of the system. This front input does not require any setup, and you can simply connect your turntable whenever you want to use it with the system. Hope that helps!