This is for (2) Sets of Metra's 72-5600 Speaker Wiring Harnesses. Speaker Adapter Harness's allow for easy installation of aftermarket or replacement speakers for use in select Chevrolet, Ford, GMC, Lincoln, Mercury vehicles. Connects speakers to factory harness. 4 Total Harnesses Included - 2 Pairs Included. Plugs directly into aftermarket car speakers. Includes retention tab for factory wire retainer.