Three days ago I noticed the volume and other controls were not working on the steering wheel to control the connect +. The next day everything was fine and working, but that was short lived as the next time the car was started, nothing including the illumination of the switches. Switch off ignition and back on the switches lit up, but they still would not control the connect + . I have pulled out the connect + unit but all plugs on leads were connected, is there anywhere i should be looking for what I believe is a poor connection. The car is a 03 stilo abarth. thanks.

I'd start with steering wheel and clockspring