Music Mp3 thingies

RRRiiiggghhhttt, is there a way to turn on the background music? An internet cafe (I think it has an older verion of ESF) had rock in the background playing at all times......but...like how?

Try reading a little further down here
http://forum.esforces.com/showthread.php?t=41741

Well I did it for ya

Question: My mp3 player isnt working, help.
Answer: Try cl_mp3player 1.

Ps. I would be a nice try to read a bit in the help section or use the search function for help It works!