Metra Reverse Wiring Harness 71-2104 for Select GM Vehicles 14/16 Way Plugs into OEM radio Power 4 Speaker Reverse Wiring Harness for Select GM Vehicles (14/16 Way) Plugs into OEM Radio Fully loaded for theft replacement One 16-pin plug and one 14-pin plug One 16-pin plug and one 14-pin plug