I've just read my manual, and there is no mention of AUX via Bluetooth for your head unit. It only mentioned it for the Connect 1 sat nav based unit.
Probably best to wait until someone with the same head unit can confirm that though, as I don't have your head unit... just going off what the manual says.
Just to confirm... is this yours?[ATTACH=full]65014[/ATTACH]
There is already a thread on this, but no one ever replied to it.