No pic.
Just changed my rear loom today after its been sat in garage for 14 months.

You do need to take rear seat out but dont need to take parcel shelf off (which i couldn't work out how to do anyway.....)
There is room to get your hand in behind DSP bass speaker and undo clip of multiblock connector. I tied some strong string to block and pulled it out of back of body, tied string to new loom and eased it back through with aid of blunt socket extension.
Fiddlyist bit is getting blinking rubber boots into metal cut out...

Boot releaser now works Yeah!