The wind deflector on my sun roof is broken in multiple places. My first question is how necessary is the wind deflector? I plan on buying a new part but will it harm the sunroof to use it with the deflector removed? second question: Where is the best place to find this part new or used(part#201.780.0144). I have the haynes manual and it does not cover sunroof repair. I looked through the search and found a sunroof repair file in txt format. It looked a little difficult to read. So my third question is where can I find some good info on sunroof repair and maintainice. while Im in there I may as well clean and lube everything, any tips or tricks for doing this?