For the record, I appreciate guerrilla art in which public spaces are transformed into performance spaces.
Your 80s-style boom box is not that. It's just loud. Really, really loud. I'm inside with my windows closed, and I still can't focus on anything more mentally taxing than blogging.
If it were a single day of this, I'd love it. Here's a guy who has found a way to challenge the way this space is used. Even the music itself -- old-school hip-hop -- is an interesting and even appealing choice (although right now you're spinning "Ghostbusters," so I'm not sure what to think about that).
But the fact that you're doing it every day has taken it out of the realm of the interesting and into a pathological need for attention (which you do not seem to be getting). Either that, or you're conducting a long-term psychology experiment to see how long people will pretend some social convention is not being transgressed when it actually is. In which case, I guess we're potentially back to interesting again.
In short, I can't decide if you're being unthinkingly obnoxious or deliberately provocative. I guess, for the moment, I'm going to treat you like I treat trolls on my blogs and figure that you feed on attention, making the best reaction none at all.** That's the approach that everyone anywhere near your vicinity seems to have adopted over the weeks: give this guy a wide berth.
But sweetie-pie, if the day ever comes when you do want someone to sit next to you -- or even within 30 feet of you -- when you eat lunch, you should really turn it down, or invest in a pair of headphones.
Keeping it real in my own way,
**This is actually my policy, and one I recommend for my readers/commenters: Do not feed the trolls.