Was driving the X this morning to get it washed at the close by car wash and heard a 'clunk' behind. The left rear window went down on its own. I am glad it went down before I went to the car wash. This will be my third windows regulator. One more to go . The 2 others were replaced under warranty but this time it will be on me. Already printed the article and going to order a window regulator. Where is the best place to order a windows regulator at the best price? OEM?