Hot-wiring the ignition switch does nothing ... and boost-control devices found on many of today's sophisticated hot rods can easily raise the price up near the cost of an ISIS unit.

Maybe wiring seems confusing because, unlike fuel, cooling, oil systems, etc., we can't see the electricity flow. Wiring your hot rod can ... connectors, an ignition switch, a battery disconnect ...

The resistor wire is wired in series between the vehicle's ignition switch and coil ... quit working and the underdash wiring harness gets hot if the key is left on for a short period of time.