Cant connect roku to my RCA 12 volt tv model RT1971-AC

Wanted to let folks know if you have a RCA 12 volt tv model RT1971-AC  and trying to get a roku remote to work the tv sound and power. I tried a lot of the choices and took a chance on the element in the list.

it worked like a champ for me.  may not for other folks, but did for me. give it a try who knows.