Odd. Have you disabled the other Bluetooth connections when trying to set up the connection to your Sonos?

These Era 100s aren’t set up as surround speakers, perchance? The Sonos software turns off the line in and Bluetooth functions when the Era speakers (both Era 300 and Era 100) are used as surrounds. 

Yeah I’ve tried it with and without surround sound mode and they just wont connect

Well, they shouldn’t connect at all when the Era 100s are being used as surrounds. I’d recommend that you call Sonos Support directly to discuss it.

When you speak directly to the phone folks, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

There was a similar issue last days on another thread and the solution was to reset all bt pairings on the Sony by holding the bt pairing button for at least 10 seconds. After that a new pairing was successful. 

Wow this actually worked I was sitting here thinking about getting the sonos turntable and having to spend more money on this setup but not anymore thank you so much!!!