Hate said:http://www.pioneer.co.uk/uk/campaign/support/bluetoothCompatibility.html
wtf, it doesn't support the K750 but does the W800.. they're the same damn phone in that respect!
http://www.expansys.com/ft.aspx?i=119273&thread=848
That might help explain it a bit. Seems like it's something to do with the software on the phone itself, although it's very possible that with the most recent firmware update, any issues have been solved.