For some reason, this is no longer in 4k, but here is a video I did a couple of years back. Not sure if this one is still available, but I've been pretty happy with the A129 Pro Duo.
At 2:14 I show both the front and rear
Instead of going through the app, downloading, etc. If I have a clip that I want off of it, I just remove the tiny sim card, and plug it into a USB stick. I believe I also upgraded the memory card to be larger.
I have it hardwired and it's a clean install. This was the first time that I've ran cable through the ceiling, and it wasn't too bad. I just needed to make sure that I was interfering with the side air bags. I was thinking about having Ford and Garland do it if I ran into problems.