How 2 change the music on Crazi Taxi 2

I was wondering if there would be a way to change the songs on Crazi Taxi 2 and then make a whole new image of the game that wouldnt effect the game. I like the music on Crazi Taxi but a lot of my friend want like hip hop version, Techno, etc.. If anyone would like to work on this project with me please e-mail me or post a reply. [email protected]