Car streaming blues, ain’t marketing great

I’ve a new to me 2019 Volvo XC60 with Harmon Kardon stereo system and XM Sirius.  Sounds a bit lifeless and not sure of either system quality or signal quality of Sirius. My older Volvo I fitted with Focal flax drivers and ran an iPod.  Much better overall.

Should I explore a different service and/or replace drivers?  Not looking for aural Nirvana here, just much better than MP3 sounding dreck.  Thanks