If not, will I have to find a Chromecast audio on eBay and use that? Are there alternatives since CCA is discontinued? Thanks!
Best answer by melvimbe
I'm not quite sure what the best alternatives for this, unfortunately, even if you went with something other than Sonos to power your outdoor speakers. Getting CCA seems like a temporary solution. Because the amp has RCA inputs and HDMI-ARC(optical) input, any Google device with audio output should be fine.