So if you DON'T want to talk over the car speaker, say your passenger wants to use your phone, can you turn it off? This was the situation today when my wife needed to use my phone. It's a convenience when driving but annoying when the Mini decides you MUST use its system. I'm hoping it's just another function I haven't yet learned. And another reason why I've named my car "Hal". Geez, just who's in charge?!