Haha, glad I'm not the only one who saw the advantages of the iS status monitor. I can't wait to eventually get mine going, although I did have a play with one in June.

I don't know how the Garmin stuff links together with the CAN bus, power, ground etc but maybe have a look at this chap's blog:

http://elder.ninja/blog/p/3521

I think he's come up with a very elegant 'daisy chain' design and it's one that I'll be using on my MGL gear.

Of course, if you've already cut the cables.......