The connection with the green light should be your main input. Make sure the green light is off when connected to cable (that is your roof antenna amplifier - that will cause distortion in your cable signal). I then have another plate with two RG-59 connections. Those are connected together with a short cable which allows the cable to go into the bedroom. I connect the cable to the outside of the coach at the connection labeled "cable/satellite".
2015 Voltage 3305
2007 Freightliner M2 Business Class
Happiness is an old pickup truck, a good dog and an understanding woman....