I have no idea if this the result of no vss hookup..
I have the AVIC-Z2 with Z3 HD from a user here garrettoomey (Thanks again for the great HD and service)
I think without the wire, the accuracy of the navigation is hindered because I have passed a street when the map has me approaching it.
So, I have got the info, where to hook the wire and will see tomorrow
Also slope does not work at all.. So me thinks its an issue.
I do not know if I rehook if I will loose my modded system (hacked) or not.
Maybe someone will post it before I rip the unit out of the car and trace fo