sun roof cracked / where can i get replaced

You can stop by your local body shop and have them look at it and order the sunroof assy and install

If it's OE sunroof search your local salvage yards and if that fails get online and search salvage yards. This will be your cheapest route. Dealership will want a small fortune for a replacement. If you do have to go to a dealership give them your VIN No. they will be able to look up the exact part for your car.