I ran rca jacks throughout the house. These are connected to a distribution amp. Then I have cheap PC speakers plugged into that from the main receiver. This is structured wiring so they can be changed to Ethernet if necessary.
Usually I listen to the news in the morning while showering.
Another way to do it is make dongles for unused phone jacks. Just make sure they aren't plugged into the Telco as a landline.
"protection" to sell all that data to advertisers. Seems secure.