The 2003 Land-Rover Range-Rover has a drag coefficient of .38 Cd.
In a snap panel in the glove box just under the CD multichanger.
No, the later system uses a fibre optic wiring harness and is not compatible with the earlier CD based system
The 2014 Land-Rover Range-Rover has a drag coefficient of 0.36 Cd.
The 2004 Land-Rover Range-Rover has a drag coefficient of .38 Cd.
The 2009 Land-Rover Range-Rover has a drag coefficient of 0.39 Cd.
The 2013 Land-Rover Range-Rover has a drag coefficient of 0.35 Cd.
The 2005 Land-Rover Range-Rover has a drag coefficient of .38 Cd.
The 2007 Land-Rover Range-Rover has a drag coefficient of .39 Cd.
The 2006 Land-Rover Range-Rover has a drag coefficient of .39 Cd.
The 2008 Land-Rover Range-Rover has a drag coefficient of .39 Cd.
It is located in the load space inside the left side panel of the vehicle.