I would try a clock repair shop.
there is an small key inside the key less remote that comes out, use that to get in.
Enter the code with the preset buttons on the radio.
If you are asking about the radio unlock code you enter it with the radio preset buttons.
I assume you mean the radio code. If so, you enter it with the radio preset buttons.Call your Honda dealer because nobody seems to know how.
Once you see code on the display use the preset buttons to enter the 5 digit code.
Push the power button on the stereo then enter the code
Push the power button on the stereo then enter the code
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Power the radio, and then enter the anti-theft code using the preset numbers at the bottom of the radio. If the anti-theft code is unknown, contact Honda with the 17-digit vehicle identification number.
You have to enter the radio code than came with the vehicle on a small plastic card. If you cannot find the code then go to the Honda Owner's link I will post and register your Honda. You can get the code there for free.
Go to the https://www.ahm-ownerlink.com/SEO/HondaRecall.asp?recallStatus=NO%20VIN&recallId1=NO%20RECALL%20IDS and enter your VIN#
Enter the 5 digit code into the radio using the presets. If you do not know the code click the link I will post and register your vehicle at the Honda Owners Link. There you can get the code for free.