Metra 70-1858 21-Pin Radio Wiring Harness for Select 1986 through 2005 GM Vehicles

• Plugs into car harness at radio (21 pin);• Compatible with select Buick(R), Cadillac(R), Chevrolet(R), GMC(R), Isuzu(R), Oldsmobile(R), Pontiac(R), and Saturn(R) vehicles;• 5-in. length;• Connections for 12-volt power, 4 speakers, power antenna turn-om, dimmer, and chassis ground;• Does not accommodate special navigation, factory steering wheel control connections, or video;