rkvtFront and rear cam has separated power cables, and both are connected to Power Magic Pro.
If you are not using Power Magic Pro, you need to connect both cables to the fuse box directly.
lcrazyaznlDR650GW also has GPS, and G-sensor built-in.
Usually, modern dash cams also monitors movement of the car with those sensors, and if the car is not moving for a few minutes, it goes into the parking mode regardless the car is on or off.
lefthandedspatulaThrough Power Magic Pro, or even it can be hardwired into the fuse box.
I recommend you to use Power Magic Pro, if you want to use parking surveillance mode.
Also, how is the rear camera powered?