electrical question
im adding a setup like this to my car but im wonderung if i can still wire this up and still be able to use my ignition key.
i already have a battery cut off switch. so the switches that will be hooked up will be like ign,fuel pump,fans, and whatever acc.

ive been lookin through my wiring diagram for the car and it looks like theres some power and ign that still go to the ECU.(im gettin rid of the ECU all together) so also need to know what i should do with those.
i didnt see anythign on my diagram but does the headlights,turn signals etc go through the ECU?






