Carin II & Post Codes

[Denis O]

After a quick 4 month flirt with a 03 Disco ES we are now back to P38 ownership. As an 02 model it has all the goodies including SatNav. I up-dated the software from 2002 to 2006 and as I understand things the 2006 disc has all UK post codes. However the hardware won't allow me to access post codes to input an address.

Is there any buttons I can press to get this function or do I have to up-grade the hardware or just live with knowing the post codes are all there but I can't get to them.