I recently replaced the radio in my 2009 Honda Accord coupe. I did so because the auxiliary function in my old radio stopped working. So, I bought a factory radio with the same face code - 3PA5 - and installed it in my dash. The AC functions work, the clock functions work, but the audio functions do not work. The power knob, all of the mode buttons, nothing. Menu button works, but only displays clock settings, no audio settings.
It is not even prompting me to enter the radio code. What do I do now?