The head unit touch screen beings to have ‘ghost’ touches which start basically changing everything that’s available on the screen. This has led to suddenly loud music being played, navigation being moved around, etc. This causes distractions constantly as it’s completely unexpected. The unit offers no way to turn it completely off so you’re stuck with it doing stuff randomly. There’s also no physical buttons to control any of the functions on the screen. It’s basically forcing you to try to get it to stop doing random actions while you’re driving.