Any hope of getting my Treo 680 phone working with 2011 Superb?

I managed to get the phone paired OK, and both ends recognise that the other end is there.

There was no prompt on the MFD for me to enter the SIM code for my phone and the address book wasn't loaded, and I can't dial any numbers from the Columbus.

It seems as if it ought to work, as the phone does support HFP (though I don't know if it supports the address book protocol).

Does anyone know if there's a workable solution.  The phone worked well in my '08 Honda Accord, so disappointed it won't work in a 2011 Superb :(

Cheers

Dave