[A/S] Yamaha Generator

["rnldlwrnc" <urlawrence@xxxxxxxxxxx>]

A couple of questions for tuna of Reno NV regarding the following 
message:

"I've had an Onan 4kW propane-fired genset in my old rv for about 5 
years - it's going into the '48 'Trailwind' when the Airstream gets 
a floor...

"The propane version puts out about 3500-3600 watts and ran the a/c 
and the microwave and all the dc stuff running off the univolt 
converter. I've never had a problem with it; electric start starts 
right up every time, and it's in a sound-proofed box with the 
exhaust/muffler running out under the vehicle. In most dry-camping 
situations where generators aren't allowed to run after 10pm, I've 
occasionally left it running past midnight (i forget that it's 
running), and only once has a ranger knocked on the door, and only 
then because he couldn't believe it was a generator he was 
hearing... he was about ten feet from it before he'd heard anything 
at all."

Question #1: I assume that the genset is in your vehicle, not "in 
[your] rv".  Is this correct?
Question#2: Can you tell us about your "sound-proofed box"?

Thanks for your help.
Ron