I just had a Pioneer 790BT installed in my car and I can't transfer the phone book from my Blackberry 8320 to the stereo. I'd read this would be a problem from other people with the same head unit. However, is there any way to manually enter contacts into the phone book? It seems a shame it can hold over 400 entries but only if you can actually transfer them from a cell phone. So far the best I've been able to do is call people using my phone and then storing their numbers in speed dial using the dialed calls list. But that only lets me store 10 numbers and I have many more contacts than that.