Issues with the radio, are of course, why some folks prefer the "phonograph", because you load your mp3 or ogg vorbis songs into the folder, and you hit "Play", and off it goes just playing one song after the other, with no "station identification" breaks or "we interrupt this program for a special news update!" but of course, there-in lies the charm of the "radio" in the game. Special announcements can occur based upon date, if the author of the mod incorporated them in, which you can look at those dates with Digital Truckers RSM proggy... cool beans, but you can, as you have found, lose hours noodling in the files...