An electrical connector system comprising a universal electrical connector part adapted to be universally applicable to a wide variety of many different types of electrical connectors, and a discrete complementary latching member adapted to fit over and maintain an electrical connection, said complementary latching member having a locking abutment and adapted to telescope over said universal electrical connector to coact with a given existing connector having orientation key elements in selected locations and latch said universal electrical connector part in mating relation with said existing electrical connector, such that said discrete complementary latching member telescopes over said universal electrical connector part and has a latching or locking wall which coact with a locking abutment on the universal part to maintain the electrical connection.