Hi Stewarty, I have a PDF Compatibility list of phones received from Vauxhall Interlink Customer Support and the iPhone 6 Plus is not yet listed and iPhone 6 is listed but no data available. But think you can try following:
For iPhone you need to use the USB Cable Connection as Bluetooth only works for "Phone Call" connection.
Plug iPhone 6 into Infotainment Centre using the USB Connection. ( Note: Your iPhone music may start playing as mine does? )
Go to Home Page on Info Centre.
Select Apps - you will see the Apps on screen but these can not be used until selected on the iPhone first.
( Required App needs to be running on iPhone before they can be used )
Let us know how you get on
Derek
On iPhone select the App you want, once loaded select this App on the Info Centre.
This should now load onto the info Centre for use. ( May take several seconds )
Note: for BringGo Sat Nav you need to purchase this for your iPhone & install on before you can use it ?