CT20VX03 Connects 2 Harness Adapter for Vauxhall Astra / Corsa / Vectra with Fakra antenna and phantom power supply to ISO ISO aerial connection is ideal for installation of radios from Alpine, .....
This adapter is required when replacing your factory fitted radio with an aftermarket radio. It will convert the original vehicle power & speaker wiring connectors to a standard ISO connector. Simply plug one end of the adapter into your cars wiring harness and the other into your new radio.