I have the 6620 and like it, but want the USB playability, plus the blue tooth looks much better than the crappy Parrot unit for the 6620.
Guess I'll either have to wait to pick a up gently used one, or spring for a new one and over pay.
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XBOX Live - Doadus51
2008 WRX Hatch with a couple mods
2010 Tundra DC 5.7L with more mods
2004 S2000 with even more mods
2002 RSX-S with the most mods