Brad, I just installed a spoiler and harness on my 06 this morning. If you are going to do the install of both at the same time, dont put the trunk liner back in until you have the harness installed. Dont ask me how i know this. Anyway, just remove the rear center section between the saddle bags, (where the license plate is at) and find the three wire plugs. 1-red and 1-blue. you can use either one. I love this setup, especially the fact that you can change the brightness of the running light. If you have anymore questions, send me a PM. The perfect setup would be to add a Kisan modulator also. Maybe later. Kelly.