Click the "Generate," "Calculate," or "Decode" button. Within milliseconds, the calculator should output a 4-digit number.
If you are searching for "calculator 23," you likely have a Visteon unit. Using the wrong calculator will generate an invalid 4-digit code that will not unlock your radio.
The term is specific jargon used in car audio hacking forums (like Digital-World, MHH Auto, and CarRadioHacks). Let’s break it down: