I just installed a new head unit with GPS in my VX waggon. When installing the GPS antenna on the dash, I found a small plastic piece with wires mounted up against the windshield in the middle between the front demister vents. What is this device? It looks like the controller for the auto headlights, but my car does not have auto headlights, and is a base spec Executive. I also apparently have the connector for the power windows below the trim in front of the centre box! Did all Executives come with the wiring and controllers for more up-spec features?