Dashcam for BYD atto?

First time owning a car here, looking around for dashcam and it seems 70mai is widely recommended. My dealer is selling it at 50% more than the market price (with installation), but I am thinking to get it and install myself. From youtube, it looks simple (correct me if I'm wrong), however I am not sure how the wiring can be done, since my car is a BYD atto. Can someone please help a newb out?