I have a 2006 Jetta and the passenger window is moving slow, I went to Autozone to see if I could just order the window motor and replace it, but they said I had to buy the whole regulator setup and I sort of thought that was bullshit. The window is not moving out of line, its just slow. So my question is: Do I need to replace the regulator or is there a way to just swap out the motor?