is the v32.3 a custom made firmware upgrade to the MK4 nav that allows the voice alerts to the cameras? The price for firmware is not bad, i'd say is a very good one... factory price for a factory firmware is about $10 US.
but the map disks are not originals though...

__________________
E53 X5 4.6iS
147K mi - Sold May 2013
Tireprints left in:
USA, Nicaragua, Costa Rica, Panama, Russia

E53 X5 4.8iS built 2005-10-17
66200 mi - June 2012
96000 mi - June 2013
112000 mi - June 2014
OEM fire extinguisher
OE first aid kit
OE tow hitch
OE TV module
OE aspheric mirror
K&N air filter
black/white badges
rear camera
4-channel video recorder

Here is the list of things I have done to the X