"Even the navigation voice telling me to "turn left in 100 meters" is too intrusive, because maybe at the same time I am talking with someone in the car. A soft

"Even the navigation voice telling me to "turn left in 100 meters" is too intrusive, because maybe at the same time I am talking with someone in the car. A soft "bzzz" on the wheel to remind me to check the navigation screen should be enough." This is entirely your preference. It in no way mirrors the entire population. For example, I love the fact that when my phone is plugged into my car's stereo system, it will not only turn down my music in order to talk to me, but it will do so loud enough to override the other ambient noise in the car. I don't want to have to look at my phone for directions. I actually want my eyes on the road. It telling me, "turn left in 100 meters" means I can do that without taking my hands and eyes off of the controls of the car.