[bossix]

Unfortunately I can't find the link to the original post. It's not my writeup so I don't know if it's Ok to post it here. If it's not against forum rules I will post it.

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Here's how to replace the HDD with a larger one. This DIY does not cover the part on how to extend the partitions. That's separate and I can't find the original link to it. Still waiting for confirmation if it's OK to post it or not as it is not my work.
http://www.bimmerfest.com/forums/showthr...p?t=841458
EDIT
After some extensive research I could fiind the original posting on how to extend the partitions. It's in german but there are enough images to figure out how everything works.
http://www.e60-forum.de/thread.php?postid=497535
I guess the largest partition on the HDD is the one with the maps so extending that one would make place for both versions to be installed. What do you think?

Thanks for the link. Very useful.
I think before you go down the road of buying a larger HDD and expanding the partition you need to answer a couple of questions:
1. How are you going to install the two maps together?
2. If you do manage to install both, how are you going to swap between the two?

I am not sure that merging the two packages together and trying to install both will necessary work as there may not be the routing info to go between the two. Just my opinion.

Good questions...
I guess I'll find the answer only by trying. I have a friend who is willing to give it a try. Worst case scenario, he will get a larger hdd so he will have more space available for music