Avoid the temptation to guess. Most Alpine units allow only 3 to 10 attempts before "Hard Locking." Once hard-locked, no software generator in the world can help; the unit must be physically reset by an authorized service center.
: "Better" generators support various Alpine models, including those found in Mercedes-Benz (serial starting with AL ), BMW (C33/C43 US DIN models), and Chrysler . alpine radio code generator better