How to set vibrate/rumble on PS3 controller in Unity 5.1

I am having some major difficulty in trying to figure out what I am doing wrong. I am busy creating a small project and would love to use this function in my game.

I have followed this to the T: http://answers.unity3d.com/questions/375119/how-to-make-the-playstation-3-controller-vibrate.html Except (and maybe I'm misunderstanding what he is saying) is to add the XInput files from MotionInJoy to my Unity project folder. Where do I find this?

I want the console to vibrate on trigger. I have added my cube, box collider and ticked 'is trigger', linked my javascript file:

  function Update () {
  
  var left = 0;
  var right = 0;
  if(Input.GetButton("Fire1"))
  left = 1;
  if(Input.GetButton("Fire2"))
  right = 1;
  
          XInputDotNetPure.GamePad.SetVibration(0, left, right);
  }
  

I have also used his C# code example to link the XInput to my console: http://answers.unity3d.com/questions/218084/xinput-how-do-i-access-vibration-on-360-controller.html

At the moment, there is no rumble / vibration of any sorts.

I am so stuck, any suggestions would be appreciated!