A:AnswerHi, Yes, it is fairly simple to install and we have videos on You tube to assist you. It will always record from all cameras, front and back. If you are in an accident, the file will lock so that loop recording does not delete it.
A:AnswerYes this will serve as your rear view mirror all the time. The picture is not as crisp as your actual rear view mirror but visibility is still good. Theres alot of features to this unit. Its pretty neat.