I can't figure out how to make this work... I use Car Home Ultra (paid version). Up until late last week, I was using a Note 3 from Verizon. I remember fiddling with something in the phone or app settings and once I did that, whenever I plugged my car charger cable into it (it acts like a hardware dock), Car Home Ultra would automatically start and would become the app that the Home button launches. When I unplugged the cable, Car Home Ultra would close automatically and the Home button became the usual home screen. I did this all without rooting. (I'm not opposed to rooting, but I'd need a really good reason to do it and I'm well past my desire to tinker.) I can't figure out how to do that on my new T-Mobile based Note 3.