Greetings: 2006 S60R
 

Sunroof is closed.

There I was, on a winding road in the mountains when shazam!
The sunroof:
Makes no sound and does absolutely nothing when I operate it's switch.

No other electronic or electrical problems.

Good Battery.

I don't see a fuse labeled sunroof.

Car has always been stored indoors, and has no corrosion.
Mirror dimming, and central locking are fully operational.

Take a look at this:
https://www.volvoforums.org.uk/showthread.php?t=249712

If no joy, then check the actual sunroof switch is getting power and that the switch itself is working. Possibly might need to clean up some contacts.

Failing that, then need to check for continuity between the switch and the sunroof motor.

Also sounds like it is related to alarm / siren, so maybe do a related search with that.