cant realy see the photo too well , but one thing these do have is a wire to the neutral safety switch that needs to be connected , its only on the indash models as its ******* in most states to have this on while driving , if it was just a player and had no monitor then you could put the monitor in the back , and all is well . ck your wiring diagram I bet youll see it
You might need to take it to the retailer and see if they will be able to help you out sometimes they might have the answer sometimes they won't if not you might need to find the pamphlet to the device and call the 800 number to get a better answer