ok so i bought the weather tech window shades and installed them. the only bad thing i noticed is at the top of the window, the window actually makes contact with the shade and kind of rubs against it at the very top. is this normal? I just want to make sure so it doesnt cause a problem with the window motors/regulators cuz it makes the window move slightly at the top as well. Any thoughts? if it's installed wrong... I want to know asap so I can correct the problem. I followed the instructions and put them in and they fit nice. any thoughts??