A company named WackO Products makes some RV quieting kits. No personal experience except I wished they made one my model. After 6 different RVs with AC not one of them could be considered quiet. No tv, radio or real conversation has ever been possible with any RV I owned.
2017 SLX 195RB
2014 Jeep Grand Cherokee Overland, gas 3.6 V6
Andersen WDH hitch
Dometic Milenco Aero mirrors