I have a 2007 Jaguar x type 3.0 auto. It has navigation, and Bluetooth.
There is no factory sub. Are these cars pre wired for the sub?
Can I buy a factory sub and plug it in. I was doing some research about going into the radio factory setting and turning on the cd changer. Would there also be a setting to turn on the sub.
Thanks in advance

 

big, if you have the premium sound package, then the wiring to the trunk is there. You can check the wiring to see if you have voltage there (if you connect up a volt meter, you should see it jumping around when you have music playing, how much will depend on the volume you have the radio set to). If you don't have the premium sound system, then you have nothing in the car to support the subs and you are looking at a much more involved setup than simply plugging in 2 speakers and calling it good.

If you want more info, let me know.