I also have an air vent holder. Let's me use the maps and see notifications when I get them. And using "hey Siri" I can respond to them, without ever touching the phone.
For those that don't know what hey Siri is. When an iPhone with Siri is plugged in and charging if you say "hey Siri", Siri activates without ever touching the phone, and of course being plugged into the blue and me all sound and responses come through your car speakers
Try it, you can have Siri read you text messages and reply to them or call people. You can even say things like "hey Siri, take me home" or "hey Siri, take me to my cousins" and it will automatically open maps and take you home/cousins house as long as you have the addresses set in your contact info, then again if you don't you can just tell siri what postcode you want to travel too, or even ask it to take you to the nearest McDonalds. (I used this in mine head once. Was a lifesaver. That cheeseburger literally saved me �� oh and it does all this whilst playing your music and giving you the directions through your car speakers... I love iPhones
Remember the blue and me system only plays the sounds your iPhone makes. So the real brains here are the iPhone's themselves. Whole multimedia devices right there in your pocket. With safe driving practises built in. Once I plug my phone into the blue and me I don't need to touch it until I stop. And don't quote me on this but I'm almost positive that android phones don't work with blue and me. (Which as I'm an apple lover think is hilarious)