SAT NAV DISC UPGRADE

[TIMSTURLA]

Hi,

I read on this forum a while back about upgrading the disc for the sat nav. I have an '05 535D and would like to upgrade the mapping as some of my local roads are not on my '05 disc. I seem to remember looking at a really helpful site run by a guy who obviously "knew his stuff".

Any ideas please..

Thanks,

Tim