Adding #2 AC

[Skypirate]

Ok, I'm a newbe....a real fresh newbe but after having my slightly used 2016 HC Montana inspected we decided to add a second AC unit to the one we have...it was wired for 2 though only one was installed by previous owner...baught identical unit though a 13.5 vs 15...have all the numbers if you want them....had to contact Dometic (multiple times) until I was actually helped and pointed in the right direction....attempted to re-boot digital t-stat and 2nd zone still doesn't show up.....frustrating but I am determined! Can anyone help? If not this will be ok,plan to talk with folks at the rally!
Thanks in advance! BTW today is Saturday the 7th....

[DQDick]

If 2016's are the same as 2017's they have individual thermostats and the wire for the new thermostat should be in the wall behind the fan control when you take it out.