Today, I temporarily mounted the ECUs to verify fit and wire length. With the ECUs installed, wire runs were determined and routed. Wires were bundled according to usage and destination.
Next the ECU power ground wires were routed to the forest of tabs and terminated using standard techniques.
The remainder of today was spent installing Deutsch connectors on the GEA 24 harness for fuel flow and tach. I opted to install a three wire connector in the unlikely event of needing an interface for either. I should not need one but with the three wire connector, adding one later will be easily accomplished.