electric roof

[Grappa]

Steven,

would have been better to mention the full history of your case in the first post.
This now looks totally different to me.

At first you should solve the main electric issues you had when the lights in the instrument panel went crazy.
My advise would be to replace the ignition switch at first. This switch could be one possibility for the root cause of the electric issue. This switch is docked onto the ignition lock from behind and can be changed quite easily. It is a cheap part ~20 EUR if I recall correct. This should solve the "lights stay on" / "engine does not start" issue.
With a little bit of luck, this solves the strange behavior of the roof electric as well. Just imagine one contact did not work in the ignition switch resulting in a lack of voltage for the roof-ecu.

After replacing the switch and closing out related contact weaknesses in the main electric you can go on solving the roof specific topics. Before that it appears to me just guessing....