iso, open it up so you can see the files inside. You guys on Windoze will need something like Daemon Tools or some other form of virtual drive (or ditch that crappy set-up and get the latest version of Linux Mint for free :grin). I run Linux on all of my machines, so no problem there. You will need to mount the RHB-RBZ.50.00.07.iso that you downloaded earlier. Get this from your favorite torrent site. The next obvious thing you will need is the latest copy of 'Garmin City Navigator North America NT Unlocked'.

We will need to tinker with it just a bit first. Put the disc in the truck CD player and 5 minutes later had a new (and ugly) screen on my radio. Just to be on the safe side, I downloaded both files and burned 33.01.23 to a disc. The first thing you will need, of course, is the latest firmware. If you still have the old firmware that came with your truck (or van or car or whatever) you will like the new look after updating. If you already have the latest firmware on your radio, you can still use this method to update the maps by re-installing the firmware. I did a little research and found an excellent way to update the Nav maps and the radio firmware at the same time. I came to this realization on the way home from South Louisiana yesterday when 3 of the roads I drive on are not on the stock Garmin system at all. The radio update itself sounded straight forward enough, but I wanted current maps on the Nav portion too. So I am very late to the game updating the 430N RHB in my 2012 Ram R/T.

How to update mygig navigation maps