nav

Has anyone updated the GM Nav DVD data in their Lacrosse? I just updated my system to a 2012 UYS radio with Nav. The Map data is from 2012. I looked and the upgrade dvd is $179 from GM. Ebay has "fakes" i believe, priced at $30.

For some reason, the navigation does not give me any of the address I need, unless I use manual entry. I use the voice command, and say Navigation, then Address, then say "1234 Acme Boulevard, Houston, TX" and the Nav responds back with choice that completely ignore the street number and name...

I'm having the familiar problem with my radio/nav/clock in my 2011 Lacrosse, where everything reverts back to a previous state whenever I turn the car off/on. I set the clock time, it reverts back. I add a new address to my Nav address book, it disappears. Lots of prompts with the Nav system...

Anyone that has the nav system on a 2012, I'd like to get your opinion of it.. including the quality of integration with an iPod, iPhone, or other smartphone. I tried it out in a 2011 regal (non touchscreen), it seemed pretty nice, but I didn't have an iPod cable with me to try it out with my...