To get any Action Replay code working on the GameCube, you must first input the (M) Master Code. This code tells the hardware how to interface with the specific version of the game. (M) Master Code:Z146-H92G-G061U82P7-7X09-K265W Currency and Career Cheats

M0EZ-3A88-6ZG76 W1C1-45RF-Q3M6C

Master the Streets: Essential NFS Most Wanted GameCube AR Codes