I didn't think the 03 nav systems had post code input? The disc doesn't change the system, if it didn't have it before it won't have it with the new DVD. However, if it did have it before and has lost the ability to do so, then something's wrong......
Thanks The system did not work when I got the car so the garage where I got it from got me the latest disc`s so not sure if it had it before.
is there a way to get postcode facility ??
Stephen