Is it just the satnav that's inoperative? If yes, then the likely culprit is the disc player in the boot. However, the system is so out of date that it is almost pointless to try and get a repair, unless of course you are seeking to keep originality. There is an option on the 4.2 litre engined cars to have an upgrade to allow Apple CarPlay / Android Auto hooked up, which gives you all of the advantages of phone mirroring, Google Maps, Waze, etc. It's more convoluted in the 5.0 litre engined cars - it can be done, but more complex. Check out systems like Mr 12Volt and Cartronics. Come back here if you need more steer. N6 JMX

I have taken my XK to 3 garages so far, 2 of them Jaguar specialists, to see if they could repair the sat nav or somehow get it working again, but I have had no luck at all.  Does anybody know where I could go next to resolve the problem or is there a spare sat nav out there?  My understanding is they are no longer made for the XK and so it has to be a complete sat nav/electrical refit.

Check out a company called Bag World, link below. They already have a set for the F-type Coupe so not a big step for the Convertible. Bagworld | Bespoke bags and luggage  N6 JMX

A belated thanks for this advice which I have taken, but I wish I could find some reccomended baggage for use in the F type boot. Even my jacket has to go in there when Im driving. Whilst  I really enjoy my F for driving, surprisingly  the  Volvo C 70  is more nimble for town use and ease of access.    Obviously need to run them in tandem so no SORN just yet !. 

Hi wow 30 years really looking forward to going to shows I do attend lots locally but a couple further afield will now be easy to get to