We picked up our new Rockwood 8244WS 5th wheel two weeks ago and just got home last night. Our trailer was ordered in February, arrived at the dealer's lot three weeks ago, and we picked it up a week later. So, it did not sit on a dealer's lot for months--it is brand new and just off the assembly line in March.
It has exactly the same problem with the iRV 66 radio volume control. The only way we were able to endure using the excessive volume on our trip was to listen to the bedroom speakers while sitting in the living room. Otherwise, we would have missed the final game of the Final Four because the volume is so loud it would have deafened us to use the living room speakers. We also used it with the HDMI cable to play a video from our laptop, but could do it only by using the speakers on the TV and not the radio.
After seeing this thread, I will be calling the dealer tomorrow and probably Forest River the day after. Thanks to those who have posted the contact names and phone numbers.
"Retirement is the best job I ever had!"
2016 Rockwood Signature Ultra Lite 8244WS 5th Wheel; 2015 Ram 2500 4x4 CC-SB 6.7L CTD
Sold: 2012 Rockwood Mini Lite 2109S