A lot of commercial planes are tail heavy, loading a bunch of people in the back first is going to tip it. Doesn’t even need to tip all the way to cause damage. It’s a scary thing to see in person. So yes it does matter what order people are seated in.

Your phone has a speaker, just use that to listen to music in the car.

And then after I spend over $100 on a decent stereo, $50 for an adapter for my car, and the $80 to have some kid install it for me I’ll be $250 in the hole and still paying for a Spotify subscription so I can listen to music that’s not shit. Or for $100 I could buy a cheap ass tablet and shove it into my air vent.