Well, I answered my own question. As soon as I uninstalled the google home app and then reinstalled it, HOME found Chromecast audio right away. I read somewhere on here you need to find an older version of the app, but that was not my experience.
Hey folks, It looks like we have come to a solution so I'm going to be locking this thread. If you have any other concerns or questions, please feel free to create a new thread.
