Thread: Ignition

Hi..i hope someone will help me with that.

I want to get a "start engine" button in my car and was wondering if someone could show me a wirering diagram or a "how to" to help me.
I want to be able to start the car with either the key or the button when the key is at "on"

And please don't judge my choice..
I just need somes informations thx

anyone?