OEM Fog Light Install Help Please

I know this probably been covered many times. I have searched and have not been able find anything. I am new to the forum and don't think I have quite got the swing of how to navigate and find things on the forum yet. I just received the OEM fog light kit for my 2014 Frontier SV with the painted bumper. I downloaded the installation instructions, I have the new turn signal l switch in, the fog lamp inserts are removed and I have located the wiring harness. From what I can see there is no way to get the lights in where they need to go without removing some items. It shows an inner fender removal for the Pathfinder and the Xterra but, not the Frontier. What do I need to remove to get the lights in? The installation instructions are not very clear about how the lamps are held in place. It shows just one bolt going in and nothing else. The kit came with a bolt, a U-shaped nut and a spring clip for each side. If anyone can give me some guidance as to what I need to do to get access to the inner bumper and how the lights are actually held in that would be greatly appreciated. Thanks.

Bill