Suitable for the following vehicle brands: Alfa, Audi, BMW, Citroen, Fiat, Hyundai, Honda, Kia, Lancia, Mercedes, Opel, Peugeot, Renault, Rover, Saab, Seat, Skoda, Smart, VW Configuration: ISO plug to ISO plug (voltage + 4 speakers). This adapter is required for the replacement radio with the vehicle-specific connection or the vehicle-specific power supply. with the correct polarity. With this adapter, the terminal 15/pin 4 (ignition plus + 12V) and the terminal 30/pin 7 (permanent + 12V) can be variably plugged. This adapter can also be used as an extension. ISO to ISO cable set (with plug) radio adapter cable ISO to ISO (can also be used as an extension). Universal configuration: ISO plug to ISO socket (voltage + 4 speakers). Suitable for the following vehicle brands: Alfa, Audi, BMW, Citroen, Fiat, Hyundai, Honda, Kia, Lancia, Mercedes, Opel, Peugeot, Renault, Rover, Saab, Seat, Skoda, Smart, VW. With this adapter, the 15/pin 4 plus 1 2V 2V Ignition with The 30/pin 7 connection (continuous plus + 12 V) variably pluggable