allstarfung

I have a cracked navigation screen and I figured I could just buy a replacement head unit and swap it, wrong. I plugged the replacement unit in and everything works but the navigation screen. The screen comes on but there is nothing on the screen. Anyone have any idea why?

Blindeye_03

Just curious but if you turn your lights on does anything light up on your ac or seat heaters? Just a thought it could be the pcb.