How To Enter Honda Radio Code With Navigation. Repeat the same with button 3; To reset the locked status (which appears when you enter wrong code ten times), try this:
Press button 2 until the correct second digit of the code is displayed. Turn the knob to the left or right until the radio displays the first digit of the code. When it is entered correctly, the radio will start playing.
Entering your honda accord audio system code.
Turn on the radio and enter the code. You can obtain your radio and navigation codes from the following website: Press button 2 until the correct second digit of the code is displayed. You have to go through the same process as for finding your serial number, with minor adjustments to enter your code.