[rirrgang]

Hello all. I use a iPhone 6S Plus as my Ipod (bigger Screen). I switched from a 5th gen iPod a few weeks ago. I am listening to a podcast through the usb connection in the console. Artwork displays, info displays and in general everything is fine. When I turn off the engine and come back to the car later in the day, I start the engine, the display says nav is starting. Once started, the iPhone starts playing my music library instead of going back to the podcast I was listening to.
Any thoughts, settings, something I'm not doing correctly?