Theres two wires on the ignition switch, one leading in for power and one leading out to the engine to ignite the coil packs.... cut the wire leading out to the coil packs. When you turn the key off it stops power leading outward, the turbo timer should wire in line on this circuit to keep the wire "hot" for a set period of time then after that time is over it stops the power on that circuit. This is only my guess on how it works, but I've wired remote start switches on cars, and this is how I do it.... Donny FYI those rotors I got from you are so freaking loud, man oh man you weren't kidding... Doesn't really bother me, but they do it with my calipers just like they did with yourse.