This will convert your standard aerial connection so you can connect a aftermarket car stereo. Suitable for the following Vehicles:Audi / Volkswagen Double Fakra - DIN Aerial Adaptors: An Aerial Adaptor is needed when replacing the original factory fitted head unit with an aftermarket head unit. IMPORTANT NOTE: Please make sure that is the correct Aerial Adaptor for your car by firstly checking to see if your make, model and year of car is listed in the advert. Secondly by checking to see if the connection in the picture listed is the same as you have in your vehicle.