Mitsubishi .... Unlock procedures if you know your 4 digit code.
Press the power button to turn on the radio should display "CODE"
Use preset memory buttons 1 though 4 (Preset memory buttons are the buttons used to store your favorite radio stations) Pres #1 to display the number of times to display the first code number . Continue with buttons 2 through 4 for code positions 2-4.
Press the Tape or CD button, and a beep will be heard and the radio will be in the operatting condition.
If you enter (or have entered previosly) the code incorrectly 3 times the radio will display Off or Lac (even when you prees the power button). You must leave your car key turned to ACC with the radio powered on for one hour and start the process again by pressing the power button after the hour has passed.