first, you don't say what year or if it's a new RV.
second, if you can't find the paperwork for the entertainment center, post a pic of it so we can help identify it.
there should be something on the front of it. does it say Genesis?
it could be a Concertone or Jensen or Touch brand system. without more info, we can't direct you to getting some help.
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity