www.TADIBROS.com was great to deal with. Very fast shipping and will work with you to get exactly the system you want. I got 5" screen w/dual input and can switch from rear of trailer to rear of truck. All I can say is it works just like it supposed to. Very happy.
Brenda and John
'14 Ram 3500 MCSB 6.7L HO PullRite 16K S/G, Grey Columbus 320RS Camped '14 - 146 days/'15 - 196 days
USN-EOD(Ret), Master Chief, 30 yrs,
Master Blaster of the Navy
I am picking up our columbus 385BH tomorrow with the camera installed. According to the manual it is an observation system with audio. Meaning you can see behind you while traveling down the road. Will check out the system tomorrow