The radios are small and can be placed nearly anywhere in your ship or outpost. They provide playlists from in-game locations such as The Astral Lounge, The Last Nova Bar, and various other establishments and locations.
Find them in the Miscellaneous tab in the build menu.
*Each playlist has its own volume and audible distance. Astral Lounge seems to not end and others fade within 20 feet. This is how the vanilla audio file are, I just borrowed them for this.
*Ship warping can mess with the radio, nothing I can do about that. Enter and exit, landing on a planet, or sometimes warping again will fix it.
Credits:
LunchboxGaming