Umm? I guess if it fails, I won't have fog lights, GPS power, or a plug in for a heated jacket. Nothing absolutely essential if something did go wrong. The Fuzeblock has a dedicated power and ground from the battery, no piggy-back on factory wiring. The trigger wire was connected to the factory wiring with a pigtail rather than a posi-tap or splicing, so the factory wiring is still 100% un-cut.