In my first version of rSAP, only SIM contacts could be loaded to the car Address book.
Later ( I don´t know how long ago ), I tried to import PHONE contacts, and it worked.
But yesterday ( I have the last RSAP version ) I realized that my car´s Address was empty and I tried to reload the PHONE contacts but didn´t found any contact.
I Tried with SIM contacts and It works, but now I only have contacts in my PHONE address book. I deleted most of them from my SIM card.
Did you change something with latest releases of rSAP?