I think I have it narrowed down to a problem with the locking mechanism. I shone a flashlight down the door gap and I can see the lever moving when I pull the handle, so it's not disconnected. The lock, when moved manually, also appears to move the rod in the appropriate fashion, but when I press the power door lock button, there's a horrible grinding sound. Any ideas how I can at least get the door open so I can take the interior panel off and replace the lock? Is there something I can stick down there and manipulate the latch in some way? Any other ideas?