My sunroof had popped out of the little guide connector in the rear CONNECTOR - 2008 CHEVROLET COBALT (10377082) it's just a little black nipple that the sunroof guide falls onto, then it helps keep the glass down tight. The sunroof wouldn't go back because it was popped out so after messing with it I ended up breaking that nipple off. Does anyone know how to replace it? It's just a small piece but I didn't see an obvious way to remove it and put in a new one. It's number 11 in the diagram.