The Van's avionics instructions are not very good. They're vague in too many parts and they don't match the harness as delivered. Today I discovered an example. The instructions suggest you route all the wires in a portion of the harness through the big hole in F-01202B-1 (the subpanel shelf) that are bundled by a blue tie wrap. But following the instructions to lay out the wires to the various components, I discovered that there are a LOT more connectors that need to come up to the shelf. Now I have to figure out which are which. The instructions also refer to the "main harness." But your harness is now three or four different branches. Referring to the "main harness" tells me nothing.