@mj - Tesla updated the steering wheel controls. To place a call press top right button. Scroll wheel defaults to previous media used. Lower right hand is the menu that used to be brought up with a scroll press.
Scroll wheel defaults to last function, not media. I leave it on climate control, so rolling the wheel instantly changes temps (in 6.0 there where two clicks to get to the point where you could scroll temps) and pushing the wheel toggles the climate control on/off.