On my '03 TB when i bought it, then i noticed the same thing on mine. that the key did nothing when turned in the door. i removed the door panel and noticed that the lock rod had came off of the lock cylinder and when the window was lowered then it bent the rod really badly. I took the rod off and did my best to try to reform the bends it was supposed to have. then I found a new clip and reinstalled it. now the problem is that i must not have formed the bends correctly because everytime i use the key to unlock the door now, it sets off the alarm when i open the door. but at least it will unlock the door now! Luckily i checked the key to see if it would unlock the door when i first got the TB with the door open just in case it wouldn't lol. phew, that would have sucked otherwise!