You can turn this off from the audio settings.
Hey guys, so I think I finally "fixed" the issue.. there's an option called "Car Stereo" which if you set to "never" at least for me, fixed the muffled music on freeroam... I actually think we are not in front a bug here as much as a poorly explained audio option.. so when they say " Car stereo = Never" turns out it means "the music doesn't sound like is coming from inside your car" instead of "music from the car (which I think is obvious to assume that's where its coming from) is now never on" ....
well... I hope this help
Omg, thanks, I didn't even know that was an option
