IPhone :: Sending Contact Via Bluetooth To Sony Car Stereo

I have iPhone 4s iOS 5 and have successfully paired (bluetooth) with my new Sony DSX-s310BTX car head unit. When I search for a contact through the head unit, it will load the entire (huge) list of contacts and allow me to navigate through the headunit to a contact to make a call (very clunky - SOny's poor design). So, it sees the contact list successfully. The head unit allows for me to enter six presets contacts into a list of popular numbers for easy access, but after the head unit is set to accept an addition to this presets list (it displays "waiting" prompt on the display), I need to know how to "Send the phonebook data by operating the cellular phone" as the SOny instruction manual says to do. I've contacted Sony support, and reviewed the pdf iPhone 4s manual (as well as these discussions), with no luck. It seems it should be under Contacts > select individual contact > Share Contact, but that only gives the option to share via Email or Message (sms), not Bluetooth.

Here are details of my "chat" with SOny support (there is not such "Send Contact" or "Sync Contact" option in iOS): 3:28 PM Austin - (C6QB): After selecting the contact, use the option on how to send it to other devices.3:29 PM Austin - (C6QB): On selecting the contact, use the Send Contact option.3:30 PM Austin - (C6QB): On the next screen, select Via Bluetooth.3:32 PM Austin - (C6QB): It might also have an option of Sync Contact instead of Send Contact.3:32 PM Austin - (C6QB): Please refer to the Manual of the iPhone to check the exact steps on how to send a contact via Bluetooth.