Thought some other Crazy Taxi players might enjoy this. I tried playing with Windows Media Player playing my own music in the background, but it slowed it down. Then I discovered this:
1. Navigate to Program Files/Sega/Crazy Taxi/SoundData/music
2. Replace game1.mp3, game2.mp3, game3.mp3 and game4.mp3 with your own mp3 song files
3. Next time you start up, the game plays your tunes!
Note: It only seems to play up to 4 files. It cycles through them randomly.
1. Navigate to Program Files/Sega/Crazy Taxi/SoundData/music
2. Replace game1.mp3, game2.mp3, game3.mp3 and game4.mp3 with your own mp3 song files
3. Next time you start up, the game plays your tunes!
Note: It only seems to play up to 4 files. It cycles through them randomly.