I have a '03-6.0L.. Is this mod only for the 05 and up? Will I need to buy the Ford AIC module? The artical refers to a factory upfitter switch, since I do not know what this is, do I (if this mod is possable on the '03) purchace an aftermarket toggel or rocker? just wonder since the only part mentioned is the butt connector. If this mod is available in the '03, can I use a DTSP type switch to achieve BCP or SEIC, therefore getting the best of both options. With a variable potentiometer installed with the SEIC cerquit, I could adjust the rpm's as needed (ham radio amp).
