Looking at an 2014 A4 and I'm curious about the navigation / MMI. If I don't get this option with I still be bale to make phone calls with my phone through the car? I can't seem to find an exact answer on this. Also, If I don't get this option what type of bluetooth options will I have using my iphone 5s in the car? Can I stream music with my phone?

Thanks for any and all help.