2005 SLK 350 Steering Angle Sensor.........Problems!!!!

[BigRed0803]

I have a friend at Mercedes, he ran the diagnostic check on my car and it came back with a faulty steering angle sensor. I took off my steering wheel, removed clock spring and steering angle sensor replaced both with new Mercedes parts. After reassembly I didn't have any steering wheel controls and no horn. This is a really simply fix, I have took it apart and reinstalled around 5 times just looking for something I am missing. I have made sure everything is connected right, and it is. I thought it may just need to be reset by the dealer so I took it over there and they reset everything and cleared the codes. But still no steering wheel function or horn. Anyone have any idea of what my be causing this issue?