I forgot I had my manuals in the house and not in the coach at the dealer.
The Vizio model is VSB211. What is interesting is the manual says it includes a subwoofer. I guess when my coach gets back from its warranty visit I need to try and locate a subwoofer. My guess is that it is not included in the installation and the other two speakers are plugged into the subwoofer jack on the back of the sound bar.
For more info
VIZIO 32” Home Theater Sound Bar with Subwoofer | VSB211 | VIZIO