I need Thule to step up and identify a roof rack for my Passport! I haul a kayak and love my Thule Hullavator and want to use it on the Passport so it's easy to load/unload the kayak! Anybody figure out where to attach bow and stern tie downs? Be nice if they had tow rings that you can install for this. Front end looks all plastic underneath haven't crawled under the back end yet.