2013 JSW - How to Clean Sunroof Drains

I've searched and searched but have found nothing about maintaining/cleaning the sunroof drains on my 2013 JSW. The 40,000 service calls for checking and cleaning sunroof drains (if applicable).
I've opened the pano sunroof but cannot find any drains front or rear. I'd be grateful for any help here. Thanks!
--MM

Try this

http://www.myturbodiesel.com/wiki/sunroof-drain-clog-repair-recall-on-vw-audi/