2004 745 li

hi guys first time posting here, got a few issues with my car maybe you guys can help me out...first thing is when i bought the car it had no phone so where do i get 1 and how do i set it up?..second i was wondering if i should upgrade to 22's..it only has 18's on it, what size rims/tires and what brands give the smoothest ride...and finally i keep getting a dynamic drive inactive thing..took the car to get serviced twice already and it keeps coming back..anyone have any idea??..thanks!!!

Congrats on your new car

Regarding the phone, the best thing to do is to get the bluetooth adapter or BTUM. Search the forums. There's tons of info on that. It's about $290.00 and you can use a variety of BT enabled phones with it.