SCOSCHE GM06B 2000-05 GM Radio T-Harness (17 ft extension with Speaker) Product Features: GM Class II Radio relocation harnessPlugs directly into vehicle harnessIncludes dual drive speaker for chime tonesPower/4 SpeakerStandard color coded wires provide a consistent and simplified installationMade from OEM quality materialsDesigned specifically to fit the compatible vehicles Connections:Yellow  12V ConstantRed  12V AccessoryBlack - GroundOrange  Dash Light Dimmer/IlluminationGreen  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 (-) Includes Dual Drive Speaker for chime tones.For 2000 &amp; up ChevyImpala / Cavalier / Monte Carlo