I added the speed cameras as military base to the map disc. But without patching the OS, it is not displayed on the MAP, because I cannot select military base in the NAV. There are many possibilities to select in the menu(Gas stations, restaurants, Police, museums, etc) but no military base. And except permantent POI Nav can display only one type of POI at a time. This type of POI has to be selected from the nav menu.

BTW what is the best method for patching OS?
1. Patch the navboot file and then add the custom splash screen, night mode, custom language (I' have hungarian instead of german)
2. Add custom things and finally patch the navboot file?

Do you know something about the reason of rebooting with the patched OS?
Thanks in advance