Well, I've enabled OBEX on my e815, but here's the problem. Most head units(if not all) don't use the OBEX bluetooth profile to send contact lists/calenders. The profile for that is called Object Push Profile (OPP). Do not despair tho... you can always flash your phone with the altell firmware that's on howard forums and then you would have OPP but you have to be a tiny bit savvy with the phone tools. Its not really that hard but you have to be careful not to hose your phone. Another think you could do is buy a prepaid Amp'ed e816 hollywood (basically our phone but in a cool black housing) flash it with the Bell Mobility e815 flash and then activate it on verizons network via their online ESN changer ;) Then you'd have the fully unlocked phone you always wanted and Java games :). Well now that I got that out of the way.
I plan on buying the avic-z1 for my mustang after december is over(had to buy xmas gifts). If I can't get the contact list to sync with just OBEX, I'mma go ahead and just do the Altell flash to get OPP and see if it will work. I'm sure that's gonna be the case tho.