When i bought my 2001 325i from the used car dealer the sun shade for the sun roof was broken and off track. the small plastic tabs on the left side are chewed up and the forward metal tab on teh right side is bent in every wich way. is thare a repair kit for this little issue. i ask because i know this is a common issue. i have seen a few people complaining about the same on a google serch i did. if not a repair kit what do i need to fix it? can this be fixed without dropping the whole sun roof frame out from the ceiling?