Nest thermostat compatible with 2 stage cooling

[sprecie]

Current tthermostat has 7 wires, can the Nest thermostat work with this system or is the learning thermostat required?

[CoolingWizard]

@sprecie , You have a 2-stage heat pump with Auxiliary heat. You will need to purchase a Nest Learning Thermostat 3rd generation. You have a choice to make as well. You have one conductor wire that is not currently being used.  You can set the Nest Learning Thermostat 3rd Generation up with both Auxiliary Heat and Emergency Heat.  To do this you would need to use the unused Orange conductor wire as the emergency heat wire and in your indoor air handler you will connect the orange wire to same terminal the White wire is attached to. 

AC Cooling Wizard

[sprecie]

Thank you for the prompt response and clarification on settings for this system.