How to enter '9' in the 2003 honda crv radio code because it only has 1-6 buttons?

How do I enter '9' in the 2003 honda crv radio code because it only has 1-6 buttons?

The code you have is incorrect one. The code should be five numbers long with the lowest available number being one, and the highest available number being six. There's no exception: 1 to 6 number only.