oh jesus christ, if you figure out a successful sunroof leaking strategy please post back.
when I got my 90 it was sealed with silicone from the outside (non-functional sunroof). I unsealed it and did the best I could to fix leaks with weatherstripping (foam rubber) silicone and vaseline, its definitely slower, but my seat is soaked if it rains overnight...
~2005 Disco 3 "Moneypenny"
~2008 GTI TSI
~If you can read this, thank a teacher. If you are reading this in English, thank a Veteran.