[Image of a wiring diagram for a 1995 Ford F-150 radio system]
Key:
* A: Battery +12V
* B: Switched +12V
* C: Ground
* D: Left Front Speaker +
* E: Left Front Speaker -
* F: Right Front Speaker +
* G: Right Front Speaker -
* H: Left Rear Speaker +
* I: Left Rear Speaker -
* J: Right Rear Speaker +
* K: Right Rear Speaker -
* L: Antenna
* M: Illumination
Note: This diagram is for a standard radio system. If your truck has a premium sound system, the wiring may be different. Please consult your vehicle's owner's manual for more information.