Hi all   A new member here. I purchased my 61 plate XF Luxury in August 2019 and have been delighted with it. My question is hopefully fairly simple ... I have searched everywhere in the boot for a CD unit containing the SatNav CD and can't find one anywhere, there is only one removable felt panel on the right hand side which houses a fuse box. I am wondering if it is therefore a USB method of updating on this model? There are a couple of USB sockets on the central console between the