There is a sale going on for Pioneer products at Amazon. 30% off code is B7IN95L6
You can actually get a 920BT for around 500$ if you apply this coupon + 100$ rebate (http://g-ecx.images-amazon.com/images/G ... 05216_.pdf) and by getting a 10% off by adding another Pioneer product (add a cheap Pioneer cable or something).
http://www.amazon.com/Pioneer-AVIC-X920 ... 127&sr=1-9
This deal is by far the best I have seen for 920BT.
Thanks to Slickdeals site for posting this deal.