This is a user community forum although Sonos staff monitor it. Have you tried contacting the sales team detailed here?
https://www.sonos.com/en-gb/contact
I recently setup a Sonos Amp with four hardwired speakers and a ProFusion I/O for Pandora for Business, which both of them are running on the same wired network. Currently, I am having some trouble getting my ProFusion I/O to play over my Sonos Amp. I have connected the RCA cable into my ProFusion into the Amp, flipped the cables around and tried a handful of other combinations. What is that I am missing to get this to work properly?
Or does someone know a way to get Pandora for Business to play through the Sonos app?