New much better speakers not much better, help

I tell people i have a Tin Ear
But even i pulled out the RV stereo and installed a Sony stereo

Yeah i know is not Kenwood class

It's hard to do much of anything, with in ceiling speakers in any RV
No attic for baffled boxes
A set of wall mounted book shelf speakers will give more pleasing sound,
If you can find a place for them