FYI, I just found these docs on Brown Davis' site. There's no link to their docs from their home page but a bit of searching.....
It might be worthwhile grabbing all their LR docs and saving them. These ones are pretty useless compared with their instructions for other vehicles. There are no installation instructions in the docs.
GEMS:
http://www.browndavis.com.au/tank-images/RRIR3.pdf
Thor:
http://www.browndavis.com.au/tank-images/RRIR4.pdf
