The rear camera attached to the wind blocker.
This camera set comes with a new power cable, with 3 wires to connect to battery power, ACC power, and ground. Unfortunately, the new power connector is not compatible with the previous 750S series. I modified supplied cable to connect it with a rearview mirror harness.
In parking mode, the camera can record in time-lapse mode or activated by an accelerometer. With a setting of the battery limit of 12.5V, I had 2-3 hours of time-lapse recordings.
I have a 32GB SD card option, with the highest quality settings it is enough for two hours of recording.