How do you even enter letters in the Honda radio? The only code is to unlock the radio after the battery was disconnected. I would think that entering a code while driving at 70 is harder than pressing the Volume button on the steering wheel.
I don't know where you're getting your information. In another thread you said:
With fob in hand and car off lock it. Then hold lock and unlock on fob for 3 seconds. The lights are supposed to flash but on my 07 they did not
If you read your
Owner's Manual you'll find that you need to press the Lock button, then press the Lock button a second time to get the light flash/horn confirmation. I don't think you'll get the confirmation light/horn if you
hold just the lock button, because if you do the same with the Unlock button, holding Unlock allows
all the windows to roll down. (You have to use the key to lock/hold the lock to roll the windows up.)