This adapter harness is used to connect the new style HID headlight ballast to your vehicle's wiring harness. Any easy way to check if this harness is required for you, is to check the OE ballast to see if it features a 12 terminal connection or a 4 terminal connection on the ballast itself. If you have the 12 terminal connection, then this harness is required to connect to the updated ballast.
This Part Fits the Following Vehicles
|Audi||B6 A4||FWD||V6 30v|
|Audi||B6 A4||Quattro||V6 30v|