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Please use the paper clip icon at the right end of the tool bar to send me that picture of the original thermostat connections..
Next look for a honeywell thermostat model number that starts with THW and give me that number or the model number off of the box.
So far it sounds like the original installer did not follow the generally accepted color code, and that is what is causing the confusion.
I also need to know if the unit that sits outside is a heat pump or not, a heat pump runs that unit in winter as well as the summer, and will say 'heat pump' on its name plate.
I will be in for another half hour tonight, if I miss your response tonite I will pick it up in the morning.
We can go from there.
I can also use a photo of the printed circuit board in the blower compartment of the furnace or air handler where the thermostat wires all connect.