More info required.
I have looked up NAVTEQ site and it gives two versions of the discs appertaining to GB & Northern Ireland. One has ITIS and the other hasn't.
The ITIS one states that TMC is the nerve centre of the ITIS system.
Does this mean that it will be compatible with the Hi-Line system and will operate the TMC on my unit or will it make it null and void? [TMC INOPERABLE].
One final point does the NATEQ disc operate the 7 digit post code system?
Regards
Rob