Re: Automatic Temperature Swap
Possible but woulld be dumb on the part of C-J since both have the same authority/sensors (well, auto unit might need a sensor in the dash & would explain the different harness, prolly just two wires & a thermister) but otherwise are the same from the back end.
Place to start is by comparson of the option list on the build sheet (CJ customer assistance will e-mail one if the ownr asks) & see what is different (dual zone has code HADS, suspect is only code that is different). Also suspect the same control has been used for a while possibly in different cars (e.g. Grand Caravan).
What might make a difference is single vs dual air but don't think that is an option. Console already has rear seat outlets and is no 3rd seat. Bet other than adding the dash sensor (going out on a limb here since do not have an ATC car to check but suspect the sensor goes behind the plastic wood trim above the glove box lid.), it is plug and play.
I should know more when the wiring diagram arrives. Be something fun to find out but in central Florida, when you need A/C it is on MAX anyway.
ps Just about five minutes play and suspect the part number in the first post is for the Manual unit (HAD) and the 55111916AC is for the ATC (HAF), does look like two tabs on the top that are different but no big, job for JBWeld. Critical question (and suspect I know the beancounter answer) is whether the connectors are the same.
Notary Sojac Y'all
One of these is a diesel: