Dometic Penguin II Installation

[friz]

Just purchased a 2018 Dometic Penguin II 13.5K BTU unit. Model 641915C751J0. Have a few questions about installation.
This unit will go on the bow of our trailer trawler which presently has neither cooling or heating.
I have a 15K Dometic unit, maybe 5 years old on the 5th wheel, 2004 with a analog thermostat. Worked fine last time I turned it on. AC voltage wiring is fairly straight forward. How to hook it up to a thermostat is a little harder.
Will need to buy a thermostat. This is a single zone unit so I believe the Dometic CT thermostat is the one I need? Some thermostats I have found on the internet come with a control box. Some do not. I am hoping that any control box is in the AC unit?
The cable, which I assume is for the thermostat, coming out the bottom of the unit has has 6 leads. Black, White, Red, Red/White and 2 Blue. I believe this unit is cooling only. I can't find a heating coil under the shroud.
I will call Dometic tomorrow (Monday) but for today anyone have any insight into the wiring or hooking it up in general?