Are your roof units even heat strip or heat pump enabled?
Heat strip models will have the connections for the drip (110VAC) and heat pump models will have a “reversing valve” installed.
Without one or both of these options available at the roof unit, no modification of the in command system will be possible.
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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