Hello Niro123 and welcome to the forum.
I suppose it depends on whether you want your camera powered only when the vehicle is running or if you want it powered all the time. There's always the option of tapping in to the 12v accessory circuit, the good-old cigarette lighter socket. Also, the Owner's Manual refers to two unused fuse circuits. Though I haven't tried using mine yet, that's something to consider.
It might be helpful if you would tell us more about yourself and your car. Consider making a Garage entry here on the forum.
Garage empty: add car
View my fuel log 2015 Mirage ES 1.2 manual: 50.1 mpg (US) ... 21.3 km/L ... 4.7 L/100 km ... 60.2 mpg (Imp)