Camera

I currently own a 2010 F150 crew cab four wheel drive.  I do some hauling with it.  What would the possiblity of installing a camera into the stop light cluster in the roof that would be used to monitor the contents of the truck bed while hauling them?  The video could be incorporated into the navigation video screen or into a video screen on the rear view mirror.  Since there is already power run to that area, it would need a video feed run.  This camera could be either a standard item on each truck or an option that would come with a package or a single option.  I feel that this would be a very popular option, and an option that may not be that costly for Ford Motor Company to do.