Chosen Solution
Need a code of 2004 Honda odyssey Serial number 11219666
if its not in the glove box then a Honda dealer will give you the code you will probably need to show proof of ownership, and give them the serial number. you can also try this site https://radio-navicode.honda.com/
Inside glove box top 5 numbers
Top code from glove box
I think he means a radio code. 56166
