Specific wiring harness for retrofitting a headlight washer/wiper system for the following vehicles: Audi A4 8K Audi A5 8T Audi Q5 Audi A6 4G Hardware parts such as washer nozzles, hose, pump, etc. will also be required If the bumper does not have an opening for the nozzles, the bumper must also be replaced Scope of delivery: Wiring harness