Bounder Folks

On a 2023, Fleetwood, bounder 35 K, Can anybody advise me how to make the volume work on the rear camera? I know it has volume, just can’t figure it out. I contacted the dealer and he didn’t know. I contacted the manufacturer and have not got an answer yet. Any help would be appreciated, thank you.

Quick question on a 2022 Bounder 35K. Anybody have experience with the LED Master touch screen. Our issue is that the lights over the driver area suddenly come on for no apparent reason. Any advice would be appreciated. Thank you.