Sharing Contact List With Car Radio

[Pict]

I have a bluetooth enabled head unit which works for both media and hands free installed in my car (Pioneer DEH-X8500DAB). When I connected my previous phone to it (Samsung Galaxy S4)  the contact list and calls list was transferred to the head unit and I could select a number using only the steering wheel controls. 

I have searched through settings on my Z5 Premium  and the head unit (contacts is enabled in the properties for the connection) but the phone book on the head unit remains empty. 

Can anyone suggest any fixes thanks

[Pict · Accepted solution]

Sorted  

I am sure I had already tried this solution but it worked this time. 

I deleted the Bluetooth pairings on both phone and head unit, cleared all Bluetooth devices from the head unit, set phone to discoverable, searched from head unit, paired, allowed phone book transfer and it now behaves. 

Kudos to me  

[Bhonder]

Thanks for the advice.