Hi guys, is anyone aware of any aftermarket noise emitters for the Model S? I live at a village house setting in Hong Kong and even in my current hybrid car when I'm making my way out to work and coming home everyday, the car is practically invisible to pedestrians. And if they're walking away from me, sometimes they're walking in the middle of the road and short of honking them (don't want to piss off local neighbors), there's nothing I can do but to drive slowly behind them for a few minutes. Better at night with headlights. I guess I could crank up the music with my windows down... but a proper noise emitter would be nice. Any recommendations?