Hello,
Recently purchased a 2016 Sierra. I plugged the ipod in a couple days after and it worked fine. Go back to the audio menu to choose the iPod to play music and see it's no longer in the audio menu. All I see is one option, "AUX". I've tried everything. I turned the iPod on and off, I tried 3 different USB cables which I know work with the lightning power adapters. It disappeared from the audio options. I can however play the iPod on bluetooth but then I have to disconnect my phone, you can't have two devices connected simultaneously.
Any help, suggestions are greatly appreciated, thanks to all in advance