I've now figured out that most of the wires have to go up to the subpanel so I rerouted everything. I have COVID, so the hangar seemed like a good place to isolate today as I worked on 42MiS/U-13. I connected the two orange wires with sockets to the CPU fans with pins and put heatshrink over them but I hate that. Heatshrink makes a lousy connector and they fell apart. I stripped over the heatshrink and added a small piece and then put a second piece over it. I installed the grommet around the forward cutout but the instructions made no sense to me. They specifically said the forward hole ONLY for us folks with older models. Why? We'll see. I connected the 25-pin d-sub and the 8-pin molex connectors labeled "HIC" to the AV-60009 ; connected the HIC connectors on the Rotax Fusebox cables to the appropriate receptacles on the AV-60009; cut off the plastic flanges of the 912iS MAINT PORT backshell and secured the 912iS MAINT PORT on wire E6023 (WHT) to the top of the F-01202B-1 . I then modified 3 grommets to be used for firewall penetration.Using a socket and a vise, squeeze one grommet at a time (as called out in Figure 2) until the socket sheared through the grommet Then I routed the wires through the opening in the F-01201A-1, wasting a lot of time looking for wires for a Dynon installation; I'm installing Garmin. I started on the G3X connector, which took awhile to find as it appears in no inventory. Looking at the powerplant instructions, I found a notation that it's in the avionics kit and I found it in the plastic bag AV-6000 with a bunch of other things. But I stopped because I need to figure out how to connect them. Does the heat shrink they come with come off? I'll consult with the experts at SteinAir.