What kind of wiring harness is used for a 03 Pontiac sunfire in the radio?

For a 2003 Pontiac Sunfire, the radio typically uses a standard aftermarket wiring harness, specifically a harness compatible with GM vehicles. This harness usually contains a combination of color-coded wires that connect the vehicle's audio system to the aftermarket radio, allowing for easy installation without cutting factory wires. It's advisable to check for compatibility with your specific radio model to ensure proper connections.