BMW Repair: Control Buttons on Steering Wheel of 330ci, control horn, coil assembly

Question
All Buttons on the steering wheel do not work including radio, computer, and cruise control. Horn works. Checked fuses and could not find one blown. your thoughts?

Answer
Jerry, I mainly see a faulty Slip ring coil assembly causing this. Also usually see airbag light on too. The slip ring is the component that connects the rotating buttons with the stationary column. You must take airbag off. Advisable to do so with the battery disconnected and key off. Let me know if you need further instruction.
-Evan