If she really, really misses it you could probably find a way to transplant the light sensor and module necessary to do that out of a wrecked Celica or something. But it certainly wouldn't be the easist mod to do unless you're very comfortable with wiring.
I don't think even the Canadian DRL equipped RAVs have this option do they?
actually it's simpler than that. the celica's headlights are ALWAYS on, the only sensor involved is one that turns the dash backlighting on and off. it would probably be fine just to have the dash and headlights turn on when you start the car and turn off when you shut off the car.
i just noticed you have a celica..... perhaps i don't know how the headlights work afterall (i didnt drive it all that often ). but the solution i mentioned should be fine.
I have this neat little device that I've had for years, it's called my hand; actually I've got two of them. It's so state of the art that all I have to do is think about turning the headlights on and off, and my hand does the job. I didn't have to install anything, and it was free.
I want the opposite. My other car shuts off the lights automatically after I take the key out. How do I make it so that the lights switch off when take the key our or maybe when you turn off the engine?