I bought this bike carrier Saturday http://www.sportrack.com/a882rp and everything is fine except I realized that it locks the bike to the bike carrier, but bike carrier doesn't lock to the roof rack. So I've been searching on the web for an answer and the only one I could find was "Lock the bike carrier to the roof rack, using the incorporated locking mechanism. If your carrier does not include a locking mechanism, install lock cores, purchased separately, into the appropriate spots on the roof rack". So my question to you fellow zoom zoomers is how could I lock it in place while still looking OEM/clean?