Bad replacement MFD or bad Prius?

I replaced my MFD this evening with one I bought on eBay, and I seem to have a problem. (My original one was an 86110-47080, and I replaced it with an 86110-47081.)

While everything else seems to be OK (I think, although there may be some slight hinkiness with the climate screen), the audio screen doesn't work at all. When I press the Audio button, I get a screen that says "Audio Off." When I press it again, I, of course, go back to the main screen.

Let me note here that I firmly clicked the connectors in place when I installed this MFD; I definitely heard each one click.

My plan tomorrow is to double-check that all the connectors are absolutely, totally pushed in place.

I'd appreciate it if someone could tell me which is the audio connector. I can’t seem to find that info on this forum or, indeed, anywhere online.

And this leads me to my main question: Does this problem with the audio screen sound like a bad MFD or a problem with my Prius?

Thanks in advance for any advice, suggestions, and/or comments. I gratefully appreciate all input.

 

Thanks so much for your reply.

So you think this sounds like a bad MFD, not a problem with my car (e.g., something wrong with the radio)?