Opel Corsa E and Canbox GMF6

[FunnyBug]

@Ivo
You said the steering wheel buttons Vol+ and Vol- are swapped. What about the other buttons (Call/Speak, Hangup/Mute, Src+, Src-, Src (push)) ?
There shouldn't be many further buttons in the Corsa E. Lighting, seat heating and maybe climate controls (if you don't have the simple/manual A/C).
What about door opening detection, parking distance detection and warning signals (key, light, etc.).
Do they all work as expected ?

[HIWOORD SONG]

The issue of the volume up and down buttons on the control panel being reversed can be resolved by reversing the volume up and down button settings on the main unit.