Luster- you are a legend- thanks man!
Coxey- you got that mate?
"iOS 7 Handfree message setup
Pair your phone with the vehicle using the proper steps for individual vehicle.
In you iPhone open settings
Open Bluetooth connections
Locate the head unit device. This is located below the Bluetooth on/off slider. A standard name may be Car Multimedia, locate your head unit name. There will be a button off to the right shaped like a lower case i with a circle around it, tap that and it will open up settings for the device/vehicle.
Turn on "Show Notifications"
Go back to home screen and turn phone off then turn it back on.
While your vehicle is still on and your phone completely boots up they should connect automatically and the text messages should start coming through your vehicle as long as it's turned on in the vehicle settings."