Some info over at JG:
http://www.jeepgarage.org/f190/wk2-d...post2020674346
quote- So I decided to go and visit my local dealer in Sydney - Castle Hill on Sunday and the man on the showroom floor showed me a brand new Grand Cherokee Blackhawk with navigation. The sales person also said their service department can do an update to the navigation maps but it would cost and I should speak to the Service Dept. I called the service department today and the lady said they would have to ring me back with a price but they had done one for a customer last week and it was around $1,000.00, hope she was kidding.
I have since had a call back and she was not kidding, $1,000.00 to upgrade but she added that the map update would be the old one Q2-2015 and that I should wait until the new one mid next year.