Check this link, its possible that help you: Etrailer Instructions 119176KIT
Also, you can downloaded the instructions from www.ownerinfo.jaguar.com
for the wiring and other choice for 7pin to 12N, this is answer to other Jaguar's owner comment...
2002 X type saloon, an independent towbar specialist fitted a trailer
socket (12n) using only a 7 way bypass relay with integral indicator
buzzer. This worked fine but the only annoyance was the reversing
sensors going beep everytime I was backing up with a trailer attached.
I've fitted the same witter towbar to my 06 estate. Looking at
wiring options I can either:-
1) Refit the 7 way bypass relay (free) but involves splicing into
2) Have an independent towbar specialist fit a proper "plug in" box
of tricks that doesn't need any splicing into the vehicles wiring
(â£145). This allegedly disables the reversing sensors (although the
girl on reception didn't really know what she was talking about).
3) Buy C2S 33125 from Jaguar for â£100+vat & fit it myself. This
is the official X type plug in wiring kit which consists of 3 looms and
a box of tricks, but the parts guy didn't know if this disabled the