Update: I did the install this weekend. The pre-planning worked out well as the installation was a success. I have courtesy lights under the doors and they can be turned on with the other 8 lights. The Lux lights are bright and the magnets make placing them on the Jeep real easy. I did encounter one issue in the rear wheel wells as they are all plastic with no metal to attach the lights to. So, I fabricated a metal bracket and it worked. If I were to use Lux lights again, I would modify the installation to make wire management simpler. Each Lux light comes with a 10' or 20' wire lead which you route back to the engine bay. This is easy enough to do, but makes wire loom and tying the wires together in the engine bay a pain (even if you did buy their wiring block). If I were to do it over, I'd place the lights where I wanted them under the Jeep, leave about 2' of wire at each light, cut the wires, and then wire each light to the main wire (one for positive and one for ground) back to the engine bay (in the above diagram this would have resulted in just four wires coming back to the engine bay versus 12 leads with two wires per). Something to consider if you go with Lux. I'll post nighttime pictures here in the near future to show the courtesy lights and all 12 lights working independently and together.