Additional wiring required for xenon headlight upgrade including automatic headlight control for Skoda Octavia 1Z Cables connect the headlights to the front and rear level sensors and the vehicle's central electrical system Scope of delivery: Cable set Notes: After installation, you will need to code the sensors to activate the brightness adjustment function Suitable for control unit 1T0 907 357 Please note that in some countries it is prohibited by law to use xenon headlights without the automatic adjustment function We also offer wiring for a headlight washer/wiper system Installation is available by our in-house technician on request