nd enormous boombox on the back that turns heads for blocks!
Yeah, assholes that don't give a frock what anybody else wants, or what other people might feel, tend to do that.
Not loud most of the time don't worry

Just like to have a party ready to bring to where i need it and on actual drives i have the volume low just for me to hear but my bass is all the way up which the big speaker certainly accommodates. Everything past 50hz is turned to the bottom
Which is even worse, because that's the crap no one can escape from, it shakes walls, houses, people, animals, etc., stressing everyone around you out.
Context: I have to live with the results of dozens of assholes that think it's "appropriate" to do this in the area I live in. Not just the ones in traffic, which is bad enough, with bass so loud it makes me naseous as it shakes my body and trike, and rattles other vehicles as well as the one it's from, but also at home at all hours as people drive by with this crap, up to blocks away from me, where it's so loud that it can be felt inside my house, despite filling the windows with thick foam blocks to minimize the window rattling, the wall still shake, the ground vibrates, etc. Assholes in the neighborhood park their cars and trucks with their earthquake bass systems running at what I hope is full blast (because if it's not, ghod help us all) for hours, and there is absolutely nothing I can do to get away from it or prevent it from shaking me even just laying in bed, preventing what little sleep I might've been able to get, or trying to destress and escape from the world.
It's like someone walking up and kicking the bed at every beat of their "music".
Do you really enjoy doing that to people around you?
You probably don't even know you're doing it, but if you're blasting your bass, then you are assaulting people around you like that.