Yup, I have one...
Live in Calvert Co, MD.... SE of you by about 45 mins but I'm up in Arlington/DC area frequently.
I actually like how it sounds for the most part, but it's driving the woman crazy so I'm actually looking to get rid of mine. It's got about 4-5 months of light use on it (the 4runner is my 2nd vehicle). Dunno if you're interested, but I'd be willing to part with it for quite a bit less than the $400 I paid. And like I said, it's still pretty much new. Maybe 2000 - 3000 miles on it at most....
PM me for more details, I'd be willing to meet up with you so you can hear (and see) it sometime....
Alex