While I do not have the same trailer, mine has the ESTONE standard DVD player and it also uses the Red, white and yellow wires. We only have Blu-Ray disks so i purchased a $50 Samsung Blu-Ray player on Amazon and hooked it up to the HDMI on the TV. Works great. Have never tried the ESTONE to see if it will even play a DVD.
Craig & Terry in Tennessee
2013 Pinnacle 36 KPTS, Voyager Rear View Camera
2012 F350 CC LB King Ranch, 6.7L TD, Ford 25K hitch, TM TPMS, Diesel Site Coolant Filtration System