I purchased my car new last year. I did not know my car came with limits = Problem if I let all 4 windows down on the road when driving you can hear the noise from the wheels or even it you let the both back window down you hear the noise. There is no noise when the window are up. And if I let my window down on driver side I have to turn up the music and turn off the music if using the bluetooth to talk or using gps navigation with your bluetooth windows have to up.