Problems with Multimedia System on Prius III 2012

Hi there. I have a 2012 Prius III and from the time I bought the car I have been having ongoing multimedia system and voice activation problems. I have taken it into the dealer numerous times, and they often say they were unable to duplicate the problems (so I started recording the issues with my iphone!). The third time I took it in with the videos in hand, they agreed to replace the multimedia unit...unfortunately, the problems persisted. They are outlined below. Does anyone have any insight on what the next steps with the dealer should be?

1. Voice Recognition button doesn't work about 50% of the time. When pressed, it displays "Voice Recognition Not Available"
2. When plugging in my iPod, the multimedia system will often reboot
3. The touch screen buttons sometimes do not work (may 25% of the time, and only some buttons, not all of them, and they are different every time)
4. When my iPod is plugged in and I navigate to the playlist, the wrong songs will be in the playlist.
5. When plugging in my ipod, the screen will just load and load and load....forever...until I unplug it and plug it back in from the center console plug (not from the iphone side).


Turning my car off, then back on often resolves the problems.

Any suggestions would be greatly appreciated!​