This switch is just a switch - to metallic part connected by pressing the button.
It's the same like every other push-button.
There is no such thing like "installation information" since the surrounding system called "start-stop" is much more complex than just adding a button.
Sure, every keyless start function has such a push-button, but no car starts by just throwing a button into the dashboard.
So, you have the part no., buy it and build something. But you will never gain "start-stop" functionality !!!
To understand the difference between "a button" and a "system with a button":
Do you think, installing the electronic brake switch of a Passat somewhere into a Golf enables the Golf with all the features a "Passat and its button" have ?
NO - the Golf does NOT have the motors in the rear brakes, does not have the software to control them and the ESP, that brakes all wheels when the btton is pressed at higher speed than 7 km/h and so on.
But maybe the button looks nice in a Golf
m;