It seems like I should be able to use a Sonos Connect to the TV and the Play 5's to the Connect? How about the Play 5's and the sub? Or even those three and two rears for 5.1?
Best answer by AjTrek1
First setup your Play 5's in stereo pair and bond them to a sub. You can run RCA out from the TV via a RCA to 3.5MM cable to a Play 5 input. You cannot setup surrounds with Play 5's.
If you insist on using the Connect you must set it as a room with RCA out from TV to RCA in on the Connect (or 3.5mm from TV to RCA on Connect). Setup your Play 5's as Stereo pair and named as room. Then group the Connect and Play 5's together. That's a lot. The above solution is simpler.
DD 5.1 can only be achieved with a Playbar or Playbase.