Get painters tape and tape over the location you want to install your LED pod lights. Mark the location where the LED pod lights will sit.

Now, grind out the hole that you have marked and then drill the holes on the corners.

Now, insert your new LED pod lights into it's new home and drill it in tightly. To wire this, it depends on where and what you are going to want the functionalities to be. For example, if you wanted to use it as reverse lights, tap the wires to the existing reverse lamp positive and negative.