The colour code surely has its logic for electric engineers.
If that is supposed to be phase wiring for 3 phase power, then the correct sequence is not at all logical..
Speaking from experience, cannibalization of an aircraft greatly increases the risk of maintenance error, even when a serious attempt is made to control the resulting maintenance.
Once an aircraft is perceived to be a wheeled parts bin, it is easy to create an attitude that permits uncontrolled removals of equipment thus creating colorful experiences for the crews flying the aircraft when an attempt is made to return it to service.