It's a $3. Speaker grill from amazon. Yes Pioneer's is different and looks stupid and doesn't protect the speaker. It touches the outside edge a bit, but I couldn't find any definitive answers on whether this was ok. Even asked some audiophiles at work, and they couldn't think of a reason why it would hurt anything. So... Let me know if you know better, I'll remove it. And thanks guys for all the criticism, bad or good.