Radio code - Only accepts 4 numbers...

Hi guys, noob here.

I'm trying to unlock my nav/radio.  I have the nav unlocked, but with the radio I have a 5 digit code, but the radio only accepts 4 numbers.

I enter one number, it shows "C" then the second for "O" the third for "D" then the fourth for "E".  Then it says ERROR 1.

So as you can see, it won't take 5 numbers.  Any ideas?

And your car is what?????????? The crystal ball feature went offline last week.