My iPhone integrates well with my hands free auto integration with one exception....I still need to press my phone power button to talk with Siri. Once I press the button then I hear Siri and give her commands. As a bonus my radio mutes. It is my hope that the apple watch solves this problem of finding my phones home button. With the apple watch, I hold the crown and I hear Siri through my hands free auto integration. Do any of you think It will work this way or will the small watch speaker/mic be in control?