Loc message on radio

Help - I changed my car battery and now my radio is locked. I searched through the posts and found that you can 'press 1 and 4' etc, to get the code... did that, got the code, GREAT - now, how do I enter the code? Hour, minute buttons? For anyone that has ever done this before, after you enter the code does the radio automatically unlock?

GOT IT - yes, use the hour and minute buttons to set the code, then push the am/fm button!