All,

I posted my wiring diagram on my site - link in my signature. Feel free to plagiarize and criticize.

Disclaimer and a few comments... I have a 912iS, all Garmin plane. Cheaper ways to do things I am aware, but I opted for something I thought I could do. I am a CPA who is mechanically inclined lol, not an avionics guru. I crimped all the pins while jmodguy and others answered my dumb questions. Documented everything in Excel and then turned it to PDF. Tried to format it as best I could. Aside from what is on the webpage, you would need a page for lights and a page for headset jacks. All of my stuff functioned without too much trouble. I had to move one pin for the fuel sending unit. Garmin requires some configuration too once it is plugged in. Took about an hour in total for that (RS232 channels, etc).

There are other diagrams floating around, I think mainly in email though. Thanks to those who gave me those. They were slightly different from mine in terms of LRUs.

For anyone studying the Garmin manual though, I hope my pages would be a good start. You really have to use a combination of the interconnect drawings for Garmin along with the diagrams in the individual sections of the 900 page Garmin doc.

A big thanks again to those that gave me feedback along the way.