Jimmy-
First of all what year/build date do you have? Only cars built after June 2000 can accept the M3 steering wheel w/ its so-called "smart airbag". If you currently have a 3 spoke sprt wheel w/ a round airbag, but no buttons you should be fine. You'll get cruise control (and the radio controls will work) when you add the M3 steering wheel w/ buttons. If you have a 4 spoke wheel you'll have to buy the new airbag which is expensive. But if your car was built before June of 2000, you don't even have the option of buying a new airbag-- it won't work.