Why the racket?

Would someone enlighten me about why people place in their vehicles a racket that can be heard for blocks? I guess it's the bass from some godawful sound system. Earplugs don't help. It's the vibration that is so obnoxious. Why risk damaging your hearing? It does remind me of my grandson jumping up on the couch and screaming "Look at me, look at me!" Or is it just a reflection of our narcissistic society?

Howard Jordan

Lewiston