HI.... I am laughing... I ailso connected my Kenwood GPS system to my X-Trail.. thinking I did not need the speed sensor wire... ..well I was wrong.. and yes you are correct that it is directly behind the instrument panel... if you send me a private eMail with your email address I will send you the PDF of the wiring from the ESM (Electronic Service Manual). Once it is connected the GPS works so much better!!!
Stephen
QUOTE=gelanni]Hi there!
I'm really stuck, iv'e got a 2003 x-trail and have recently fitted an alpine nav unit

everything so far went well except that i need to connect the speed sensor wire of the nav unit to the vehicle speed sensor wire on the x-trail.
Can anyone please tell me where the spped sensor wire would be?
I belive it is one of the wires behind the speedo, but i'm not sure.
Thanks.[/quote]