Not english native, so bare with me with the grammar

I just bought a CC 2005 and one issue I noticed right away is the following:
The left rear window works with the button in the back, it also works with the buttons on the driver-door panel...BUT...i doesn´t work when I use the window-button on the middle console or when I pull the roof down.
Any tips?
I started taking the panels apart, but the wiring is insane...does anyone have any electrical diagrams that might help me?
/ Björn