In Brunei, usually we'll see these kind of driver around Hot Spot especially around places like Coffee Bean where a lot people are sitting outside and enjoying their drinks. Well, we know these drivers are seeking for attention... ya ya, some of them are not looking for attention. They just love the music and they only want to share it out. Duhh!! That's why we sometime suspect they work in a Music Shop.
I've seen some of them purposely put the Sub-Woofer outside the car to creates noise pollution. And when they pass by, those car parking at the parking lot will start to moan and swearing with their alarm systematic voice.
Yes, this is a warning to those parents who try to start their kid's car and for those who have heart attack, pls don risk it.