Sorry for bringing this thread back from the dead, but I found it while searching for my problem. I recently bought a used vehicle and the previous owner installed the z130bt. Everything seems to work fine except for the dimming of the screen when the headlights are turned on. I search everywhere for a wiring diagram without much success. I have the icon mentioned above when I open the navigation screen, but it seems to operate the same as hitting the 'close' button. I'm guessing the installer never attached the illumination wire to the headlight/tail light wire and was hoping someone might kn
