This is only for cars with the basic audio system.
If the car has the Alpine amplifier you will need to bypass this amplifier to connect to the cars speakers.
This iso lead has a flying lead ignition supply which needs to be connected to a suitable ignition source in the car.
Car models: The years stated refer to the model's years of manufacture, please check the item description for information about any changes there may be within these productions years.
Jaguar - S-Type (1999 - 2007 )
Jaguar - X-Type (2001 - 2010)