Pretty slick really.
It completely disconnects the factory ignition switch. I used the existing wiring block that connects the switch to the wiring harness to connect the controller wires to the side of the block that the original switch wires were on. Four wires out and four wires in. Very straight forward.
Then you need a signal source to tell the controller to power up. For that I used the AUX button signal from the power door lock kit I installed a few years ago. Instead of powering the controller directly, I used the signal to power a switch on the console. When I hit the AUX button, the switch becomes active but there is no visible power to the button.
So, all I need to do, is unlock the doors with the remote, push AUX to power up the button start and throw the fob in my pocket. Jump (more like scrunch) in, flip the switch and hit the button. Zoom, zoom
Because this system completely disconnects the ignition switch, the button has a set program. First push activates the ACC circuits. Second push activates the IGN circuits. The third push has two functions. If you want to start the engine, you push the brake pedal and hit the button. If you don't touch the brake pedal the third push turns all power off.
It all sounds complicated, but it actually works very well.
The one disadvantage is you must activate the brake switch to start the motor, which means you can't hold in the clutch and work the gas pedal. The car must be in neutral so your left foot can press the brake pedal.
I left the steering column lock and ignition switch intact. Used a spare key. Cut the head off and used it to unlock the column. Covered the switch opening with a black plastic cap. It actually looks ok. This will make it much easier to return to original if I want to.
I have only tried it a couple of times. We are still covered in snow here. When I get the car out in the summer, if I don't like it, I can put the whole mess back to stock in a couple of hours.
Now, if somebody figures all this out and steals the car, right after I call my insurance broker, I'll call Mark and Doug and tell them "@#*&" you were right.
Doug M