Sorry to hear that code didn't work. I found one other from another forum. (hi there, I have found the code for the furrion tv which works and its 1868, the only downside is the mute button does not work.) If this one doesn't work the only alternative is to contact Furrion directly and see if thay can help you.
Best of luck.
"Why the hell would you want to do a thing like that."
2014 Ram 2500 6.7 Cummins
Soon to be owner of a Pinnacle 36FBTS