Am I missing something obvious? -Besides the fact that all can be covered by a bluetooth speaker and a cell phone? lol. Sorry, had too.
A 3 way rocker should work, no? similar to the way a rocker switch is used to fill/empty ballast with an aerator set up anyway. They share a common ground, Main power from source and individual source power on each end of the rocker.
https://www.amazon.com/X-Haibei-Wate...7894D3DGS2RQD7