Inhave a walkout basement and pool. I want to install some outside speakers and have them participate in the same speaker group as another set of speakers in the basement. I’ll plan on having an echo dot in the basement that has another set of speakers connected to it. How can I connect a few outside speakers to my echo network and include them in the same zone as the basement? I’m thinking this is simply another echo to connect to something that powers these outside speakers but not 100% sure. Also need the outside speakers to be wireless.