Transmission Heater Line hook up

[Moose Knuckle 34]

Hey guys , got a 15 ram 1500 hemi with a 8spd transmission , had to replace the transmission cooler lines with the above part, my question is which line connects to where at the radiator. On the transmission heater the lines connect there, 2 holes, to make it simple, the hole closest to the front of the heater, that line goes to where on the radiator? Top or bottom? And same for the hole at the transmission heater closest to the back of heater, that connects to which line on the radiator top or bottom? Any pictures at the radiator side or under around the transmission heater would be amazing .
I know they are supply and return lines but which is supply and return?
I can't find a clear diagram and didn't label them because the old lines looked to be different size connections for each.. any help would be appreciated. 52014804AI is the part number.