I am glad the reinstall fixed that connection issue. If I had an older software version than 4.4 I could make a masked downgrade file for a version that could potentially work better. I might mess around some more to see if I can get Siri to talk through the speakers. I am not sure if it has to do with Siri as with apple earphones it mainly listens preforms the command and does not speak. Now that you mention it I didn't notice it not talking through the car, It would call but not send texts for me, probably part of the issue as it normally asks what you would like to send.
I agree that ford intentionally removed this feature and then blamed it on apple. I am not sure why but the install files for 4.6 had some major changes in structure from what I can see. The older installations had 7 things to install while the new one only had 6. Along with different sized backend data files. Many things could be changed in the installation file for different results that I have not messed with and I'm not sure If I will because I'm unable to see the source code and would hate to brick my radio.