I have been doing a lot of research on Youtube and on https://dashcamtalk.com/forum/
I just purchased a Thinkware F50 from Bestbuy but everytime I hit a bump it makes a Beep sound meaning it is recording as if it was an accident...LOL I just purchased yesterday from MassDrop the Blackvue DR650S-2CH with out the IR...I will be looking for IR lights to install for inside.
This guy has 7 installed in his SUV. https://youtu.be/yESBjO0CrA0