- For installing radios with a Quadlock connection into vehicles prepared for ISO ,For BMW ,- 1 Series ,- 3 Series from 02/2001 ,- 5 Series from 11/2000 ,- 6 Series from 2004 ,- 7 Series from 11/2001 ,- X3 from 2004 ,- X5 ,- Z4 from 2003 ,- Z8 from 2000 , ,For Land Rover ,- Defender 2 from 04/2001 ,- Range Rover 2002-2006 - Radio Connection: ISO ,- Model: Quadlock Adapter ,- For Car: BMW/Landrover ,- Specification: Radio Specific 2 years legal warranty only