1995-97 Ford Ranger Car Stereo Wire Colors and Locations 1995-97 Ford Ranger Stereo Wiring: Constant 12V+ Green/Purple : Switched 12V+ Yellow/Black : Ground: Black/Light Green : Illumination: Light Blue/Red : Dimmer: n/a : Amplifier Remote: Blue : Antenna: Right Front : Front Speakers: 6 1/2" Doors: Left Front (+) Orange/Light Green : Left Front (-) Orange/Light Green : Right Front (+) White/Light Green : Right Front (-) Dark Green/Orange Ford Ranger Radio Wiring Diagram - The Ranger Station Ford Ranger Radio Wiring Diagrams. Below is a break down of common wire colors as well as links to wiring diagrams. The wire colors listed are for the base model radios. Premium and Audiophile radios have additional wiring for an amplifier and even a subwoofer on some models. You should refer to the specific diagrams from the links below.