I started a new game about a week ago, after v2.0 was released. I am experiencing this issue as well; from a new player perspective, this seems to be a big problem when I'm playing the single player scenario (Old Man). Radios started duplicating inside the Home of the player and the ambient radio sound growing larger for each additional radio spawned. I now have reached ~15 to 20 radios on and around the little coffee table in front of the couch (all radios turned off in all vehicles). I have not found an in game work around for this yet and this bug is still problematic for me and possibly many other players as well. It is not game breaking at this time but a very obtrusive game play experience. Take a look at my screen shot: