Nfs Heat Music packs ?

Is there a way to add your own music into the gamefiles? And to perhaps delete the existing tracks? I am not into hiphop or any of the music that is in game... I can certainly mute the game volume and open media player in the background, but id rather have the music integrated into the game by adding them into the gamefiles. Anyone know how? Couldn't seem to find a file in the game that was labeled 'soundtrack' or anything of that nature.