I currently have an aciv-d3 that came with a truck I puchased.  I was interested in updating the maps since it is a 2007 version.  I have checked many posts, but have yet to find the instructions on how to update.  Any intructions I have found are vague and don't really work.  Is it a matter of just inserting the new DVD map update?  I've tried this and it's not working for me. Says inappropriate disc.  Any help on updating would be great, this unit is old, but new to me and I'm not quite framiliar with it yet.  Thanks in advance.

I currently have an aciv-d3 that came with a truck I puchased. I was interested in updating the maps since it is a 2007 version. I have checked many posts, but have yet to find the instructions on how to update. Any intructions I have found are vague and don't really work. Is it a matter of just inserting the new DVD map update? I've tried this and it's not working for me. Says inappropriate disc. Any help on updating would be great, this unit is old, but new to me and I'm not quite framiliar with it yet. Thanks in advance.

Or if anyone has a 110 east disc for sale, please inquire.