I have recorded seven accidents, and for six of them a rear camera would have been useful. In only two cases did I have one functioning.
The rear camera on my two channel system died two weeks before a crazy accident. In response to that, I moved the mobius to back, used a few self made mounts to make it more discreet than the suction cup. As such, it appears I have I damaged it. Haven't got around to trying to fix it.
Edit (added "in response")
Witnessed an accident in
October with my wife, who became aware we didn't have a rear camera. Demanded I order which I did that weekend. My ISP email and my yahoo email used to be linked to each other, but it seems unbeknownst to myself, they some how got disassociated with each other. So the email address I was using for both was only getting one email address and the one it was not getting was my the one I had use to create an Amazon account. There was a problem with my email of order of an a118c (credit card change that occurred in the summer) and I never saw the email.
All of that fixed, the email issues, the credit card issues and the fact of waiting close to means I get to order a A118-c2.
It will be on the rear of my SUV by the weekend.