Metra 71-1858

Product Features:

• Reverse Wiring Harness for Select 1988-2004 GM Vehicles
• 21-pin plugs into OEM Radio
• Power/4 Speaker
• Harness is designed to plug in the factory radio
• Can be used to repair a harness where the plugs have been cut off or damaged

Connections:

• Yellow – 12V Constant
• Red – 12V Accessory
• Black - Ground
• Orange – Dash Light Dimmer/Illumination
• Green – Left Rear Speaker (+)
• Green with Black Stripe Left Rear Speaker (-)
• White – Left Front Speaker (+)
• White with Black Stripe – Left Front Speaker (-)
• Purple – Right Rear Speaker (+)
• Purple with Black Stripe – Right Rear Speaker (-)
• Gray – Right Front Speaker (+)
• Gray with Black Stripe – Right Front Speaker (-)