Hi all
 
	New to the forum; recently purchased a tidy 10-plate XF-S in great condition and 92k on the clock.
 
	It was going cheap due to an ABS fault and oil leaks from failing rocker covers - now all sorted.
 
	The 9-speaker Jaguar Premium sound system is decent, but I presume the B&W is notably better.
 
	I understand several XF owners have upgraded over the years; it will be helpful to understand the benefit and challenges before deciding whether it is worthwhile. 
 
	I have no qualms shelling out ~£350 on the amp and speakers from an ebay breaker and swapping-out the drivers and amp.
 
	While I have SDD, the challenge of programming modules and CCF files isn't attractive; what is likely to cost to get the kit enabled once installed, and where could I have that done, please?
 
	Is all that is required an update of the CCF and programming of the new amp to match the VIN of my vehicle?
 
	Given I already have the Jaguar sub-woofer and it is rather substandard (small driver; poor depth and linearity), I intend to fit a modest aftermarket sub with a dedicated amp and use the existing sub inputs as a high-level source signal.
 
	Any thoughts, perspective or advice will be gratefully received.
 
	Cheers, Max