Recently my remote trunk lid opener stopped working. It's the same for the button in the door. I can hear the unit go "clunk" in the back, but nothing happens. It is in the enabled position, so that isn't the problem. If I have the trunk open, I can see it move, but if I then push the lever there is a little more play. It seems like it simply isn't engaging the door mechanism enough to get it to open. Any ideas how to fix this? It's rather annoying, especially at night.