I saw how you did in Nav monitor, then the follow-up on how to for the "standard" radio. I have an even more standard radio without that button that pulls up the 1 TIMER 2 option. Mine is blank when I press that button. My button is a single function, not dual. I do not have the on-board computer option with my radio. I tried in key pos'n 1 and here is what I get.
....and there was some good Floyd on 97.7Htz FM