This is an imperative feature for my own personal immersion, I don't want to listen to my own music -- I want to listen to the music in the game. Music needs to be louder, and absolutely needs a looping option. I find that over half the time I'm playing there's nothing audible going on. (For that matter, half the time my speeder doesn't make noise!)
P.S. How will we ever know when a suggestion has been accepted or in review? Seeing as this thread is about a year old, it leads me to believe that the developers don't care or don't actually take suggestions.