The vent behind the door is functional, sort of. I just found this out when I had the quarter panel off... It's indirectly connected to the interior of the car behind the rear speaker. Also, about the louvres, mine (I thought) were badly faded, but I found that it was more dirty than faded. The gray/ white muck came off leaving a dark gray (what I assume is original... I just scrubbed it with acetone for a few seconds.... 1537 ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/.