This is the Connects2 CTSBM005.2 2004-2013 BMW Radio Replacement Interface with Steering Wheel Control Features: BMW Steering Wheel Control Interface Vehicle Model: BMW 1 Series Year From: 2004 Year To: 2013 Connector Type: Quadlock (Fakra) Head Unit: BMW Business Professional Plug and Play installation Note: E8* variants. Yellow permanent 12V must be connected directly to battery Allows you to upgrade to an aftermarket head unit whilst maintaining use of your factory steering wheel controls Safety: Allows you to keep your hands on the steering wheel and eyes on the road. Plug and play, no cutting of wires required Maintains the original features of the vehicle such as date, time and temperature display Choose the relevant head unit connection lead according to the make of aftermarket head unit you wish to fit For interfaces where phone buttons are supported, the following brands allow pick up/hang up in Bluetooth mode: Alpine, Clarion, Kenwood, Pioneer and Zenec