It took a long time, but I finally worked out a layout that worked for all the garmin boxes.

When I had Midwest Avionics build the wire bundles, I really had no idea where any of the remote boxes should go, so I told them to build the bundles based on what they had done previously and let me know what layout they designed for.

This worked great from the standpoint of not having to spend a month pulling wires one at a time, but it definitely took a while to figure out how to best position everything. to work with the prefab main avionics bundle

One example, they had planned for the xponder to mount vertically through the sub panel, and the remote comm2 to go under the center stack. This would have required yet another hole cut in the sub panel, and after looking at this for a while, I determined that I could swap those two, mount the comm from a couple of ribs, and teh transponder sideways under the radio rack.

It gets pretty tight under there, with switches and whatnot, but with a lot of trial and error, I was able to position everything with future maintenance in mind.

Once the boxes and racks were in, I started mounting and routing branches off of the main bundle.

There's simply no good way to do this. You just have to start at one end and go for it.

Amazingly, what you see below represents 4 days of work.