I've seen this done many servers before, I'd love to see it here too but I've also thought of multiple ways to make it more unique.
- An option to turn on and off the radio in game.
- Options to decrease and increase the volume of the radio
- Request songs inside the game via song name or youtube link (idk how this would work)
^Along side this note I'd also recommend a song filter of keywords etc to stop players from putting on troll songs of a homophobic / Racial nature. Also you can see the history of which players have suggested which song, so those who still decide to attempt to troll can be banned or jailed.
- You could ethier create a bot to manage the radio or hire a player or two to manage it, perhaps giving them a custom rank in game.
- The radio could be played 24/7.
- I'd also say you should have a total playtime of 2-3 hours to stop players from making other accounts to suggest songs of a troll nature.
Please leave other suggestions below on how I can improve this post :)