Yeah, I was wondering that you didn't have a music system for your trailer.
Of course, I have no idea how much trailer we are talking!
I set my daughter up with Edifier stereo speakers (she didn't want a real system. However, if I had it to do again, I would probably go for one of these!
https://www.amazon.com/Edifier-Bookshelf-Subwoofer-Bluetooth-Wireless/dp/B077Y6PHKQ
The two different Edifier speakers I have heard were very good for the price as was the one that Gene reviewed. so I am assuming their other stuff is also.