Before ordering make sure your window switch is identical to the one presented in the photo. Otherwise the connector will not match. This module will enable the One Touch window feature on cars that have electric windows. Only the electronic module is sold, the button already exists on the car. One module is needed for each window. What is it useful for? It is opening and closing the window with just a click on the window lifter button. You need one module for each electric window. How it works? A short press (less than 0.3s) on the window lifter button (up or down) starts movement of the window in auto mode to the desired direction. This movement continues until pressing the button again or until the window reaches the top or bottom and stops automatically. The window stops automatically also when it encounters an obstacle (a hand, for example). For long (over 0,3 s) window moves as long as they keep the button pressed - Manual movement. The module is plug-n-play, and it is simply inserted between the button and the electrical harness of the car. No modification to the original harness is necessary!. Inside the dashboard is enough room for installation. Note: remote opening/closing additional function - requires that the module is connected to the central locking system of the car (the wires marked "LOCK" or "UNLOCK" of the module must be connected to the central locking computer - called UCH/BCM behind the Fuse Box) and the electric circuit of the window regulators is supplied with permanent power (see installation manual in the installation instructions link below). Locking the car 2 times within 4s will rise the windows. Unlocking the car 2 times within 4 s will lower the windows. Installation instructions: InstallationManual Demonstrating videos: https://www.youtube.com/watch?v=NDecYb6GQP4 https://www.youtube.com/watch?v=2Qg6HrFxPVk