Rocklobster27

Have a 13 jk unlimited and recently upgraded my head unit to a 4100 pioneer nex and was wanting to add a reverse camera. I have never installed a reverse camera but since I installed my head unit and amps with no problem than I figured this would be pretty easy. I have tried multiple times to install the camera but I never get a image I was hoping someone could explain the steps I need to take to get this thing to work. Below is a link to the camera I purchased.
Esky EC170-06 HD Color CCD Waterproof Car Rear View Backup Camera, 0.86X0.65X0.50-inch https://www.amazon.com/dp/B00GSFIJS6..._BPUWybHVCWNBT