So you have a non multifunction steering wheel ? No radio buttons,phone,cruise ? I'm pretty sure if you add the wheel you will get the radio controls but you might need to add the slip ring as I assume your car probably has the wiring tucked away in the column. Also you can add the obc if you don't have it but adding as "bc" blinker stalk and using BMW soft ware to code for it. I did this to my buddy's e46

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