For those who want to replace the "interactive" music (like the dynamic muscle/tuner/exotic themes), a more complex process involves converting .mp3 files to .sps format and manually hex-editing cues for the menu themes. This is generally considered a tedious process and is less common than using the plugins mentioned above. NFS Carbon mod installation Tutorial (everything explained)
: Some advanced versions allow listening to online SHOUTcast radio directly within the game. nfs carbon music replacer upd
Before you begin, always your GLOBAL and SOUND folders located in your NFS Carbon installation directory. For those who want to replace the "interactive"