I have a set of Sonos ARC + Sonos Subwoofer + 2 x Era 300.
All four are grouped into one room, and the Era 300s are used as spatial speakers. In this room, I also have a turntable with a preamplifier. If I connect the turntable to one of the Sonos Era 300s using a line-in adapter, will I be able to select the source for these connected speakers?