I was trying to create a custom radio station for a new world cell and used this tutorial to start with http://www.youtube.com/watch?v=g5ez-5RZWwI. Then nothing worked so I basicly made an absolute clone of existing New Vegas radio but simplier. Just music. When I load songs in GECK they play fine but when I enter the game it just doesn't play a single one. I have a Talking activator and a quest with two topics in Radio tab. Radio Hello and Music. When I choose a song and press play I hear it playing but nothing happens in game. And I did convert it to .wav file. All the songs.

You may need a Merged or Bashed Patch. If the songs are added to a leveled list, this is how your going to make the mod work in game.

There is a real popular mod that adds a bunch of songs to the game, get that mod and see how the author did it.

Note, if you add any copyrighted songs to the mod, it can only be for your personal use, you can not publish it for other's to download.