Needed - Vent Window \"cap?\" Help! I've been searching for the plastic "cap" that goes on top of the vent window assembly. (Don't know how else to describe it.) It goes between the the top of the vent window/door and the drip deflector/plate. It looks like the continuation of the vent assembly window channel and the door glass rolls-up into it on the front top croner. I can email or fax a picture if necc. By the way, does that drip plate screw onto the door frame, windshield support or top? Hard to see in pictures I have and I've never seen one up close. Thanks!!!!