If you run it off the parkers, that means your rear lights will be on as well when you drive in the daytime.[/QUOTE]

Would it not be better to have the rear lights on as well?
That is the idea of headlights on during daytime when on country roads.....
Also with most modern cars dash lighting up when the car is running, it prevents people thinking that they have their headlights on when they do not, and the vehicle can be seen during low light conditions as the original idea was.....
Unfortunately, Oz regs are a bit half assed...