Galaxy S5 :: Cannot Get Contacts To Be Recognized On Car Bluetooth?

I have purchased a Galaxy S5 and cannot get the contacts to be recognised on my car's bluetooth, Volvo XC70. It all worked fine with my previous Motorola RAZR. What I had was the ability on the car audio/radio to search and scroll through my contact list and most recent calls. I have been able to pair the Galaxy OK to make and receive calls but every time I get in the car a message appears on the phone asking if I agree to share contacts and call history. But clicking Yes makes no difference. The message just keeps appearing in a minute or so.