gate

My truck came with the factory tools in the pastic box in the tail gate on the passenger side, but the driver's side cubby is empty. Can someone tell me what went there? Can't seem to find out in the owner's manual.

Figured I'd check here first - I'd like a sliding RV gate for our side yard. If anyone here is experienced and wants some work, I'd rather give this a go than just head direct to one of the larger gate/iron door manufacturers in town. Please PM me if interested or respond here with referrals...