My dad has an '06 CR-V, and when I was up in Ottawa with him the other week, his battery decided to die after sitting outside overnight (it was -40 with the windchill, so I'll cut the little Honda battery some slack). It's all charged up and good to go now, but of course the radio is asking for the code. After trying my US website (radio-navicode.honda.com) that I usually use at work to retrieve Honda/Acura codes, and having no luck since the car is a Canadian model, I called my dad's local Honda dealer (Ottawa Honda I think) to retrieve the code. I did the old 1 + 6 button trick to get the serial number, and they gave me a code over the phone. Of course this code didn't work, so I called back to verify. They told me the same one. I was heading home to VA the next day, so I told my dad to just take it to the dealer and have them check it out. He did, and they were totally stumped. The code they keep getting apparently comes up for a Honda Fit, and they can't get it to work. The Honda tech actually said that in 25 years he's never seen this. My dad is down here at my house now, and I was just messing with it, unplugging it, removing the fuse, etc., and still no luck. Anybody have any ideas? Or is it time to throw in an aftermarket stereo?
I'm sure that you checked, but all of mine have been written on a label in the glove box or owners manual.
Yup, checked all over the place. Everything I have verified with the serial number have given me the same code, even through the dealer.
Did you verify the serial number on the case? Its a long shot but worth a look.
Its entirely possible that somewhere in the system a serial number and password got mix matched. If that's the case I would call the Honda consumer affairs line and see if they would goodwill a radio.
wae
Dork
2/25/16 12:06 p.m.
Our '03 Oddity had the radio code on a label that was on the frame for the rear hatch.
If the number Honda gives you is wrong, you are toast. The radio is a brick now, I'd bet.
The radio in my old BMW will block itself if you enter the wrong ID code so many times in a row, and then you have to leave it powered on for an hour before you can try again. Is it possible the Honda radio has a similar feature?
Just pulled out the radio again to verify the correct serial number. Yup, it's the right one. I'm thinking you're right, Streetwiseguy, this thing is toast.
In reply to stuart in mn:
Yes, you get 10 tries before it locks out. It resets if you pull the fuse or disconnect the battery or unplug the stereo. Believe me, I have reset it many times now. 
5 digit code, or 6? If its 5 digits, with 1 to 6 used, you only have, what, 66,666 possibilities. You should be able to enter 10 per minute, with another minute to unplug the radio, so 66,666 divided by 10 is 6,666 2 minute blocks, so 13,332 minutes. 222.2 hours. Hell, that's less than 10 days, and that's if the first digit is a 6! Get to work, man. 
Now, if its 6 digits, that might be a waste of time...
IT's probably been sent out for repair when it was under warranty. This was a common problem. The code in honda's system will have the old numbers but when it was repaired, a new code was used and a new card supplied with it. I bet I saw this a couple dozen times in the 10 years I worked for them. IIRC there was no "fix" unless you knew where it was sent for repair and even then, they only held records for a couple years.
Nothing like spending 3 days trying to track down a code for a customer only to find out hte company that repaired it is out of business and there's nothing I can do but sell them a new $1200 radio.
In reply to Streetwiseguy:
It's 5 digits...
open the glove box, press the sides in and its flops down, its usually printed on the outside of the glovebox, usually on the drivers side. but you don't see it until you let the glovebox flop down.
chiodos wrote:
open the glove box, press the sides in and its flops down, its usually printed on the outside of the glovebox, usually on the drivers side. but you don't see it until you let the glovebox flop down.
This was going to be my suggestion. Otherwise might be hosed. 
Try multiplying the code by 2.54.
