Solar ready seems to mean that Jayco ran wires from the roof to somewhere in the RV. I have read that Jayco puts a sticker where the wires are in the wall, or in a cabinet, or somewhere??? Not kidding. You may have to contact Jayco with your serial number and they may be able to help you if you get the right person.
Once you find that location, and if you like it, then it's a connection to the system. If they marked or colored the wires, IF!. Multimeter is your friend.
Remember, connect the controller to the battery first!, then connect the solar. Turn off solar before disconnecting the battery!
2017 SLX 195RB
2021 Jeep Grand Cherokee Summit L 5.7L V8
Andersen WDH hitch, Renogy 100 AH Lithium &
200 Watts solar panels from Renogy
Prev. '14 Jeep Grand Cherokee Overland, gas 3.6 V6