Hello,
I tried searching and found nothing of substance...
I just installed an N-3 in a 1998 Expediition So I could have GPS and great audio...
The unit is made up of bits & pieces but all of it works...
The "brain " was off E bay..same with the head...
The head needed a new ribbon & screen ( backlight was out )
Everything worked as it should ( on the bench ).
In the car..
#1 Problem, the car thought is was traveling 90 degrees out from actual.
So on the display, it showed I was drifting... A reset & learn fixed that..
#2 Problem, I have a E brake line connec