Actually the last phone paired has priority up to a maximum of 4 phones. When the 5th one is paired it nukes number 1 and the latest 4 remain.

If you want to change the order, you can set the car in pairing mode and then press and hold the pairing button for 10 seconds. This will delete ALL paired devices and let you start fresh.

Now since your real question seemed to be about the phonebook loading, it has nothing to do with the order or priority of the paired devices.

Phonebook transfer is a function of the phone. The phone must have the proper Bluetooth profile in order to transfer. This profile is OBEX or Object exchange. Some phones are not setup for Automatic transfer of contacts. I have been told this is a security reason, but I am not sure about that. Anyway some phones require you to manually transfer the phonebook.

Put the system in pairing mode, and using the phone menu selection, transfer the contacts. I am not sure about that phone, but in some Sony Ericssons the you go to contact, then select business cards, then select SEND ALL.

Martin