Trucker Dash cam setup from Falcon

So I have the 4 camera set up. Night vision is useless. Forget it at night. The back facing cameras need extra power ran to them outside if you want night vision but again you cant see anything anyways. I called, emailed, and sent messages on facebook posts and sent private messages and never got any response. Useless. One camera has a red blinking light for a few moments then goes solid blue light after start up . the other camera just blinks all the time. One camera has mysteriously lost 10 minutes on the time. The only thing I like is that the cards come out and plug into an adapter I can use in the laptop. My old cobra dash cam is 100 times clearer at night and also crystal clear during the day. I only got the new setup for the rear facing cams but again useless.