Thankfully back when i was playign with car audio although i was a bit poor i decided to spring $600 on a pair of high quality cans and tweaked the sound card in my computer to match....More than 2 weeks pay at the time.....
Still have the cans, but the puter is long gone.
Let me listen to music in ludicrously high definition then try to copy that in the car. Never got close, but going by the trophies packed away in a box from SQ comps came close enough.
And used to jump Genres tuning, i think this is most peoples issue, they will set up an audio system for SQ listening to one type of music, Back then i used to use Megalomaniac by KMFDM, Beethovens 7th, and Edge of 17 by our gurl STEVIE.
Gave me a nice broad range of sounds to work with and tune to.
Was great cruising down the highway looking straight ahead through teh windscreen and having the soundstage make it feel like a band was playing on a stage directly infront of you,
Cheers.