Ebay offers Back Up Camera for 2011-2013 Jeep Grand Cherokee Dodge Durango for $17.19 (reg $689) with free shipping.

Product Description:
Manufactured from top quality components, this is your best option and inexpensive replacement for your rebuild, repair, and maintenance needs - an OE replacement product for your damaged or aged factory part.
Replacement - the most affordable brand name for replacement parts that you need! Replacement is a professional brand for autobody, lighting parts, electrical, brake, suspension, intake and exhaust, and cooling and heating products. All Replacement brands include 1-year, unlimited-mileage warranty.