I read in a post that it was suggested to get extra clips for the rear side panel that the rear speakers are behind, as inevitably one or 2 will break when pulling the panel. Is this the case for everyone, and if so, is the clip the same as the front door clips? I called my local Mini dealer and they said they could only find "door clips" for the door panel. Is this the same? Also, would it be the same clip as BMW would have, so I could get it at the BMW dealer which is 30 minutes closer to my house?