Car Stereo CD Radio Wiring ISO Harness And Aerial + Removal Keys For VauxhallThis adaptor will enable you to replace your factory fitted head unit with an aftermarket model. It converts the cars power and speaker plug into a standard ISO connection, suitable for all aftermarket head units (Alpine, Clarion, JVC, Kenwood, Pioneer, Sony etc). You simply plug one end of the adaptor into your cars original wiring harness, and the other end into the new head unit. (With vehicles that have the new Fakra or Quadlock connection there is no ignition switched 12v supply. This is usually required for aftermarket head units, and they won't power up with out this being connected) Fits vehicle models including: Vauxhall Agila : 2004 OnwardsVauxhall Antara : 2007 OnwardsVauxhall Astra H : 2004 - 2008Vauxhall Combo : 2004 OnwardsVauxhall Corsa C : 2004 - 2006Vauxhall Corsa D : 2006 - 2010Vauxhall Meriva : 2006 OnwardsVauxhall Signum : 2004 OnwardsVauxhall Tigra : 2004 OnwardsVauxhall Vectra : 2005 OnwardsVauxhall Vivaro : 2005 Onwards  Vauxhall Zafira B : 2004-2010NOTE: Compatible with Original Two Digit Stereo only Installation Note: Connect loose red cable to an 12v ignition driven live.Orange cable requires connection to illumination wire but only if the new radio requires this.Blue wire needs to be connected to the Remote Antenna or ignition supply wire (if rem ant wire not available) on back of new car stereo.*PLEASE NOTE* The above list of vehicles is a general guide and cannot be guaranteed in all cases.To ensure compatibility, we recommend that the vehicle connector pictured above is compared to the actual connector on your vehicle. Please also make sure the removal keys are the right fit for your stereo.