Thanks icu for your post.
I have a 2011 build date Oct 2010 w/ the combox. Before I went to the website, I went out to my car to write down what software ver I currently have and it shows bluetooth ver TX-003.004.031 So I went to the website put in my VIN# and chose Verizon and then iPhone 5, it showed that an update is available for my car.
It said Bluetooth software version after I do the software update will now be: TX-003.005.004 So I put the file on a memory stick and went to my idrive and downloaded the update, it said my car had to be running to do the update, so after the update processed. I checked to see what software I currently have and it shows: TX-003.005.005
So that means the downloaded file contains a newer ver than what it states on the website because it said I was going to get TX-003.005.004 but I actually now have TX-003.005.005
My iphone 5 has not arrived yet still on order, so I can't try it out yet, but my Htc droid incredible still works like it did before. I just hope when my new iphone arrives it will work with the new lightening cable and I don't have to get the 30 pin adapter.