Sonos on separate VLAN on unifi

I have read lots and lots of posts on this but many of them are old posts.  I have tried many things but still no luck.  I have my sonos boost wired to a port on my ubiguiti switch which is setup to use a separate VLAN than the rest of my network.  All my speakers are connected to the boost wireless through the Sonosnet.  After two very frustrating days of trying to get all the sonos stuff moved to the new VLAN, I finally called support.  The guy right away had me uncheck Multicast Enhancement and Multicast and Broadcast Control.  That seemed to work to get the speakers setup on the sonosnet with the boost and be visable from my iphone when on the same wireless network as the speakers.  However, if I am not on the same wireless network, the Sonos app cannot see the sonos system.  I have tried entering Firewall rules for various ports from all the threads that I have read but still nothing.  I am wondering if I have the Firewall rules setup correctly.  I am fairly new with unifi, so still learning the system and all its settings.  I am wondering if I can get some help on this?  Give me an example of how I would setup the rules that Sonos needs to be accessible to other devices on a different wifi.  Also, what is the current setup to get this working.  If someone who has this working can lay out all their settings, that would be very helpful to the rest of us trying to figure this out.