Some peopel don’t kow to connect and install a rearview camera for his beloved car to work with a car DVD.There alwasy are some issues about back camera connection.Some have no image displayer on the screen when reverse car.Some even have no response when reverse car.There is no change in the screen.Normally,before you buy one camera,you should check if the camera’s shape is the same with your original car’s license plate light’s shape.Because the camera was placed to the place of license plate light.If the shape is not the same,then this camera can’t fit your car.