After much digging, a specific reference was found in the Electrical Standard Practices Manual for working with environmental splices on Airbus aircraft.
That reference is 20-43-11-0.
FedEx seems to have what I would call the Maintenance Manual Police. If you screw up...... you "will" be receiving a call or e-mail to correct your mistake.
No attaboy for a job well done, just get the damn paperwork right.