Tadi Bros wireless backup camera has intermittent problem

My information is old so you might have a different experience. We got a wireless Tadi color system in Jan 2015. Had problem similar to yours so we fought it for a while and then hard wired it in Jan 2016. It was better but then in Jul 2017, either the monitor or the camera went bad. Tadi couldn't tell us which and we were tired of trying to get it to work properly. We bought another system Rear View Safety and have been very happy with it.