What do audiophiles do in their cars?

First thing I did to my 2015 911 GTS was to upgrade the sound. 
Kline headers and IPE cat back exhaust was like upgrading to TEKTON Speakers and $3k isolation platforms!!!!!  ;)

Better sound than anything on this forum. 

+1 dekay Up here in No Cal

When alone I tend to turn it up and listen to Qobuz or the ancient Ipod.

In the past I have put in better systems. But. 

A dream car would be a burmester car audio system in an electric Mecan. Just saying.

Focal separates, 3 old school  Fosgate DSM amps and a JL Audio 10W3. Using an active crossover. Doors lined inner and outer with Soundskin along with the trunk.

"Tweeks" (long explanation) and sound deadening has made the factory installed stereos in my late model cars much more listenable.
I don't have stereos in my old/vintage vehicles:
a) can't hear them anyway via wind/road/motor noise
b) want to be able to hear when parts from a 50+ year-old-car fail or fall off the car completely

Have very good system in my Lexus. Did not renew xm satellite subscription after trial it made my ears bleed with listening fatigue. Have plenty of good local radio stations both music snd sports talk. Some bluetooth apps can sound ok but some like pandora are as bright as the sun. I do have an aux plug i can us and have thought of trying out a dragonfly from my iphone. Will update if i do.