Dash mounted REVERSE light

Don't know if 4 speed or electrical is the right category so I'll try here first. I want to install a factory reverse light on the dash of my 71 Demon. It's the one that glows orange when you put your manual trans into reverse. Does anyone have a pic of the location where it mounts? Maybe some measurements? Not that it's that crucial but if I'm gonna do it, it may as well be in the right location.
Thanks