Go to the FG-FGX forum:
http://fordforums.com.au/forumdisplay.php?f=350
In the top right corner of the topics list is a "search this forum" box.
Click on it, and type in "sunroof"
There will be 29 results, and at least 4 of them are direct questions about the FG sunroof, and deliver all the answers.