No Metadata sent to receiver

[RACERX79]

Hello all, just a couple of thing that I'm having problems with and thought you guys may be able to help. I have a Sony XAV-712HD receiver in my car and use the Xperia Z3v with it and I get no song info from any app via Bluetooth connection. I tried my wife's Galaxy S4 and my friends Note 4 and both put song info up on the display immediately. Also anyone using MirrorLink, I have low sound quality and can't adjust the volume on the phone while in Mirrorlink. I know it says Bluetooth is not supported when using ML but if I use audio through the cable it only plays through my front speakers. Anything you guys can help with would be great! Thanks in advance!