Cab Cam backup and observation system

[jalapeno]

Hey everyone, i am looking to install a backup camera and my unit came pre-wired for the furion camera system. I have reviewed the furion system and would prefer to go with something a little better. in my research i have come across the cab cam system that was developed for agricultural and industrial use. from what i understand some fleet operations and garbage collection trucks use this system. i have seen the system and it looks good. 7 inch monitor and sturdy cameras. It also has some features that i am interested in, ability to record, up to 4 cameras, and audio, thats right audio, its one way but would be nice to be able to hear the bad things the wife is saying about me while i am backing in lol. if using multiple cameras the wiring harness activates the appropriate side camera when the turn signal is actuated to increase viability during lane changes. and there is an optional ac power adapter that would allow the monitor to be plugged in inside the camper and used as an observation/security cameras when not mobile. problem is i have searched and searched and cant find any input on the system. price wise you can find it online for around $300 with one camera would love to hear from someone that has experience with the system. i should clarify they offer a digital and an analog system, i am looking at the digital. thanks in advance for any feedback.