Unplug the various connectors holding it all together.

As you can see, I marked up all the plugs and sockets with colour coded paint pens. I recommend doing the same.

Only one end of each wiring loom can be disconnected. Inspect with a lamp or refer to my images to make sure you're pulling the right ends.

Don't tug on the wiring looms. Some will be stuck tight. I used a long nose plier & hooked pick/probe/scraper.