Super awesome info guys, thanks knew the experts would chime in. Purchased from Garage Sale here and was a 3 light setup with only one Radiance Scene. Harness had only power/ground kit. I was so excited to get it installed I made sure that I routed it how I wanted. Took off the skid plate and lowered the intercooler just to stick the harness between the plastic sheet right above the intercooler. After installing the mount and lights noticed that the Radiance did not have a plug just bare wire ends while the harness had only the power/ground (red/black). Anyways finished the install with the white wire terminated. Everything works fine but now after looking at the truck wanted to get the amber backlight working.
Again thanks to the vendors that chimed in since I already ran the wires probably gonna go with the tap in route. Good to know the support is the best here!!!
Now to find the correct wire to get power from...