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With the wire run it was time to make the connections.  Ground wires are all white or black (no color).  I’m using white but most supplied components use black.  Color will mean power.  All lighting circuits will be red.  Most everything else (avionics) will be one other color.

The first picture shows the ground wires in place. The black wire is the ground for the landing light run out through the grommet. The ground wires all come from the units on the other side of the spar.  Three red wires out, three white wires out.  There is a spare red and white wire run behind the spar.

The second picture shows the hook up in the landing light bay.  These two areas are finished.
      With it all hooked up I powered up everything and labeled the wires so I know what goes where.  Notice the frame ground.  This runs to the battery negative terminal.