i have an 2005 Armada with navi, but am looking to get the update cd/dvd for it, i have seen that there is an 6.7 update cd or a 7.2/3 update dvd. i think the 6.7 is for the 05' and the 7.2/3 is for the 07' and newer, will the 7.2/3 work with the 05' model? Does anyone know what the difference is between the two, besides the format? Any help on this by anyone would be great.
Cheers !!!
G