Additional Details About 3-Way Split Monitor/Mirror
I have added a new post on my blog regarding the monitor. Here are some photos.
You can see the cable splitter coming from the rear top of the monitor:
You can see how the cable is fed up through the windows seal.
Side view of how this clips onto your mirror.
Side view showing buttons for configuration settings and aux port. The monitor also has a remote which I always use. Never touched the side buttons.