3000GT & Stealth Radio Code Instructions

Step 1 - Get the code: You need to call a local dealership, preferrably a Mitsubishi dealer to get the code for your stock radio. They will ask for the serial # of the radio (usually printed on top) and the vin of the car. They should give you 1 to 3 codes to try. The lookup service will probably cost you somewhere around $45.

Step 2 - Input the code:

These instructions are from a 1997 3000GT SL owner's manual.
They apply to both the single and double-din head units.

The 4-digit security code is required to reactivate the stock Infinity head unit in the following conditions:

  1. The head unit is removed or stolen, or when left in the following conditions for more than one hour.
  2. The battery is discharged.
  3. The fuse is blown.
  4. Power supply from the battery is disconnected.

Security code input procedure:

  1. Return the power supply from the battery to the normal condition.
  2. Place the ignition key in the “ACC” position.
  3. Press the volume control button to switch the unit on. “codE” will be displayed.
  4. Press No. 1 through No. 4 to the set the four-digit code using No. 1 for the first digit, No. 2 for the second digit and so on. Beginning with “0” the code digit will increase each time a memory pre-set button is pushed. For example: Pressing pre-set No. 1 four times will display the number “3”.
  5. Once all four digits are properly entered, press the “TAPE” button. A beep will be heard and the audio system will be in the operating condition.
  6. If the security code does not match “1 Err” is shown on the display. In a few seconds it will change to “codE”. Repeat steps 4 and 5 to input the correct code.

NOTE:

If you screw up and input an incorrect code 3 times, various owners have offered the following solutions:

-OR-
  1. Turn key to "ON" position. (One click past "ACC")
  2. Wait one hour
  3. "codE" should appear on head unit.
  4. Input correct code.

Many thanks to GolfPro from 3si.org for providing these instructions.

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