Well I didn't have time to upload all the Photos earlier so here is the rest of the pics.
Wheel off:
So whilst this was off I decided to take the radio controls off I don't need and Hoover out all the crap that was behind there.
The air bag connectors were a tight fit through the boss but it is doable if you open the clip first before feeding them through.
I decided I was going to extend the horn cables and use both wires rather than use the wheel as an earth.
Should have don't this bit before putting the air bag sensors through but not to worry.
Once it was all tested I could get the boss on the splines and tighten it up.
I then put the rubber boot on, washer on and first screw in loosely:
All the screws in and connect the horn up and job done for now.
I say for now as you may have noticed I have missed a few steps there in regards to air bag resistors. There was a fused resistor with the boss but it was very loose in the connector and didn't seem to work. I tired it in both of the two air bag connectors to no avail so I have left it off at the moment and will sort something out one day. I figured all I would need to do is pull back the rubber boot on the boss and get enough space to play with it without having to remove the wheel.