I recently purchased a used n2 from a friend. It worked fine in his car but when I hooked it up in my car, the unit lights up and the screen comes out, but the screen stays black. And none of the buttons on the unit work except the eject button on the face plate. No other buttons on the face work and no buttons on the screen work. The only way to get the screen to retract is by turning the car off.

Is there. Security o. This unit or am I just missing sumthing.

Thanks for any help

there probably is a security code on it. print out one of the manuals online, it will give you troubleshooting ideas

re-chek the wiring in the back,make shure the power cords from your car puts out enough power on the cords,be carefull to not use more then 10amps in fuse