[TR] tr3a tail light wiring

[Randall]

IMO Yes, you should fabricate a ground harness.  The factory did rely on the
mounting screws and they are far from secure, especially since the screw
only goes into a clip nut (rather than into the metal of the body).

FWIW, my ground harness follows the main harness around the trunk, to a ring
terminal under a gas tank mounting bolt.  I also have a ground wire up to
the fuel sender.

-- Randall