I have an N2 head unit installed with an N3 brain...the system is functional but I need someone to help me with a few things. 1) My navigation arrow (that indicates the direction of my car) never faces the right direction. The brain is installed in the correct position and I have even tried to move it to make the arrow face the right direction, but it keeps winding up off track. 2) Problem one could be because my Speed Sensor wire is not attached. I know where it's supposed to go, but haven't been able to find someone who can connect it. 3) The whole point of me upgrading to an N3 brain (with the CNDV-70MT software) was for the advanced iPod functionality - but I still don't have it. Anyone know of any AVIC specialists in Miami that could help me out? Or maybe someone here can walk me through some troubleshooting?

I would try a hard reset, and then check your setting, go to menu, settings tab, and hardware information, see what kind of strength the antenna is pulling in. Obviously the vss will remain at 0. That sounds like it could be the issue, b/c even though the vss is not connected, it shouldn't be off by more than 10-15 feet.