What do audiophiles do in their cars?

Hello bigtex22. I installed the best Focal car speakers (wood fiber cones, $500 ish) in my Mazda van and it made a great improvement. A bit pricy, I was flush at the moment, but worth it in the long run.

Your music room isn't in your house?

Listening while driving is different than listening at home. I prefer to listen loud in the car and quieter at home. In the car is the only time I can stand heavy metal; at home is when I can listen to bluegrass or folk music.  Equipment in the car doesn’t matter, while it does matter at home.

In my 2009 E350 sport sedan, I listen mostly to prerecorded jazz, old school soul/R&B, or soft rock on SD cards.  Sometimes I listen to CDs, or stream Qobuz or Tidal via my phone. Same goes for my 2003 CLK500 coupe.  

I replaced the CLK’s factory radio with a more modern one, but kept the Bose speaker system. So I use a USB stick instead of an SD card.  

The E350 factory Harmon Kardon system and CLK500 Bose system sound good to me.

2016 F-250 lariat stock upgraded system ... listened to SiriusXM for a couple years.  Got tired of it.  Local rock/hard rock radio station works fine now.  ‘16 Taurus... same.  2011 Hayabusa.  Ear plugs in for wind noise.  No music... it’s best to pay attention.