How to Install aftermarket head unit

[TheWildman]

You need to trim the hump section back by 25mm.
Also when fitting the new fascia, make sure that you fit the top crossmember so that it's lip fits under the lip of the screen surround.
It is easy to get this to end up on top if you are not looking for it.
It will fit OK, but it's is a bit fiddly.
If like me, you had the Bluetooth module fitted in the car (under the old radio) then it is best to remove this along with its plastic holder.
Then cut away a section of the horizontal plastic peice under the new radio position.
This will then allow you to put the cable harnesses and connects2 box under the new radio in the void.
Room is very tight otherwise.
When all is fitted, go into the settings menu by long press on the steering wheel SOURCE button.
Go to Radio settings
Bluetooth settings
Turn on BLUETOOTH
Set to 7 BUTTONS.

then you are all set.
This last step ensures that the Phone Answer and Phone Hang up buttons work.
Otherwise they will not, and the Hang Up button will just act as a volume Attenuate button and you won't be able to use the steering wheel controls to answer and hang up a call.