In my old '94 Bounder, the fuse was in the lead near the display monitor under the dash cover. Probably because even back then they had optional types so the in-line fuse came with the unit.
I thought mine was dead too until I found there was a push on/push off button on the monitor face. And the other thing that threw me many times of the 12 years I owned it was the SOUND from the back of the RV. Sometimes I'd bump the volume knob and then weeks later when I drove off, took me forever to figure out where that loud engine noise was coming from. Doh!