In-game music permanently on

Started happening today.

I have my audio music volume turned all the way down (OFF) in the pause/settings menu.
For some reason, this doesn't work anymore. Even when I try to change the slider in the menu, the music volume doesn't change as it normally should.

Luckily, the "M > Vehicle > Police Radio" feature disables this when I'm driving a police car. But any other car, no.

Much worse, every AI, police and civilian has the radios on full blast as though I never turned down my music audio at all.

This mean when I'm arresting someone or when backup arrives, all I hear is very loud music coming from at least 3 AI cars around me. And so far, 100% of AI cars has the radio on.

Everything is fine in standard single player. Its only when I use RPH to play LSPDFR that this happens. I have disabled the mods folder, which changed nothing.

I have even done "UnloadAllPlugins" to see if it was a specific mod that was causing it. Again, I still had the music issue.

I want to say its more of an RPH issue than an LSPDFR one, but I'm not sure what plugins or other things are running in the background when I use the unload plugins command.

even if it seems LSPDFR itself isn't running.

This is making the game borderline impossible to play, so I'm needing a fix or an idea as to what's suddenly changed ASAP.

I'm happy to provide a video outlining my issue if needed...

Cheers,

Mike