Connect the Android head unit to the car wiring harness through this product.The car provides power to the Android host through this product.CAN to UART converter.connect the Android head unit to the car's multimedia control system.Provide power switch, reverse gear, steering wheel button control and other functions for the Android head unit.color: BlackMaterial: ABSCompatibility with cars :For Opel Astra H 2004-2009For Opel Zafira B 2005-2014For Opel Antara 2006-2015For Opel Vectra C 2002-2008For Opel Corsa D 2006-2014For Opel Meriva A 2003-2010Package Contents:1 x Radio Power Cable1 x Radio ANT Cable1 x CAN-Bus BoxOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.