dont know why this trailer has a cable outlet in the first place ...
we have never used ours .. and never will. We are rely heavily on downloads/internet for our entertainment, a fairly high end laptop, and external drives. Movies, series, and your favorite shows can be all there, without excess weight and space.
Thats how we do it .. on long trips ... and also use phone hardware devices for calling home for free .
Chuck ... the location of the cable outlet strongly depends on the build date of the A122 that your purchasing. The earlier units had the cable put next to the electrical outlets next to the bed. If you check your build date of the unit, and you dont find the cable outlet under the the micro .. the unit was built in 2010 ...
2008 Nissan Frontier 4x4
2011 Rockwood A122