I've patched the navi.exe for v 5.00 (update 2013). This is for an AVIC-F940BT
Instructions on how to patch it yourself:
I've attached the already patched Navi.exe
If someones interested in the full 2013 update (including this patch and patched verinfo.dat) let me know.
It's ready to put on a SD card and simple to install on your F940BT
Navi.zip