rd4 cd radio handbook says l can link mobile phone to it via bluetooth do l have to have a certain make of phone as it does'nt seem to accept mine the phone sees the car but not vis versa

Dont think you should need a special phone unless yours is very old and car is using latest B/Tooth
Check settings in phone make sure it is discoverable
If asks for passcode 0000 is the normal default

u dont need one