I used this harness and it is a much cleaner install. The reverse lights I did have to splice into BUT the purple wire on the harness (if I remember the color correctly) is a revers light so no splicing into OEM wires, just that same harness. With that all said I have to tell you folks how disappointed I am with my IPCW tailgate light kit. I chose IPCW because it had the most positive reviews from Ram owners (they all look very similar if not identical). Now some of the LEDs are fading leaving a variety different brightnesses along the bar. Not acceptable IMO. Here is a picture so you can see how bad they are really. It only lasted 3 months and now no response from the Manufacturer. Not happy at all and I intend on removing this POS because it looks so cheap on my truck. My advice is DO NOT BUY IPCW products!