[BRZlimited]

So I've been having a small issue with my driver side window. I have a 2013 BRZ and my windows auto roll up and down when opening the door. Well it's making this squeak sound when opening and closing the door. It doesn't make the down when I roll the window all the way down or all the way up. If I open the door and press the little sensor on the frame of the car so the window inches up and down with the door open it still does it. So yesterday i cleaned the whole window off inside and out and used compressed air in the window groove to get rid of what I thought was sand and it was fine for a few minutes. Then it started again, the car hasn't gone outside of the garage since I did that but I still think it maybe sand that's stuck somewhere. Any ideas of what it could be or ways to fix this, its getting annoying lol.