Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
(I regret that I am not able to offer Live Phone Call service at this time; However, your request is still open to other Experts in this category, and one of them may pick up on it at any time.)
Try (with the radio powered Off) pressing and holding down the
buttons, both of them, and while holding them down, press the Power button to turn On the stereo/radio.
This is a one-shot, it does not cure the need for a code to be entered into the radio. Once you have turned the radio Off again, it will revert to needing that code. (But you can turn it On again with the 5-Seek-Power combination, again, I think.)
What code are you seeking? that is not coming up on the radio.