Mega cab storage locks

[Jasonhatfield18]

Im new to this but I've had a 2008 dodge ram mega cab for about 6 months now and I am wondering if anyone knows where I can find a locking door or locking handle for the storage containers behind the rear seat on the mega cabs. I would like to keep some sensitive items back there instead of locking it up in the tool box in the bed. Anyone know of where I can find something like this?

 

[MADDOG]

I had a 2007 MegaCan and wanted to lock them as well. I used a small hasp mounted on the sides of the box with a loop mounted to the top, then a Master lock padlock. Wasn't elegant and a determined thief would have been able to get into them with some effort but it was all I needed.