1) Wireless antenna: ran from where you see it in the pic earlier down the inside of the center console. I DID undo the 3 fixing points to be able to left the center console itself, and removed the oddments tray. The antenna is routed under the central structural bar and pokes out directly UNDER where the oddments tray sits as there is a perfect gap.
2) Aux lead: again, from where I was in the picture earlier I follow the same route as the wireless antenna to the structural bar, then came OUT of the center console underneath and into the passenger side cabin. From there, easy to route up to the rear of the latch and tuck is as per Dave's video - then just hide the wire under the outer edge. Again, difficult without loosening the center console.
3) Microphone: as prevously concluded, had to pop the head unit out again, route the wire BACK to the rear of the head unit and over to where all the wiress run at the top of the steering column. There is plenty of space, you can easily feed the wires from the head unit cavity over to the steering column cavity in the same/opposite way as feeding wires between head unit and MMI box. I was dreading removing and refitting the steering column cowling as I remember it taking ages (and cutting me in several places) when I did the cruise control - but the thing popped off and back on within about a minute!
I did have trouble refitting the center console trim top/cover, which again I've struggled with in the past - just very tight and hard to pop back in.
Anyway, all working now and tested the mic/wireless connection etc etc so glad that's all over with. Not too bad a job really, just worth planning/knowing exactly where all your wires will eventually be running - and as I've found a number of times before, working on the car is just generally far easier in good weather with the top down. I'm just too damn tall, old and porky to work on this thing comfortably inside it
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Glovebox off and on again!