Yeah, that's not a bad tactic, and one that I considered.
The catch is that our stereo isn't big/loud enough, and it would result in even more pi55ed off people in the neighbourhood - this joker is at least 150m away, so there must about at least fifty other households listening to that rubbish.
As an aside, a mate used to be kept awake by his ~45 year old neighbour and the neighbour's Asian girlfriend 'greatly enjoying each other's company' at 2am - bearing in mind the neighbour still lived at home with his mum and dad, and this would only happen when mum & dad were away. And it would happen everynight they were away...
Subtle hints didn't work, nor did less-than-subtle hints (like dropping her favourite phrase: "Give it to me now" multiple times in 'over the fence' conversations with the neighbour).
Eventually, everytime the neighbour kept him awake, he'd get up and play a particular song on the stereo. After a few nights, the neighbour obviously twigged to what was going on, and stopped/quietened down out of embarassment.
I should also add that both houses were on a busy surburban street, and both had a freeway behind the back fence...