configuration found in most models from 1987 to the early 2010s. For systems without an external amplifier, the wiring consists of two main harnesses: a 10-pin plug for power and front speakers, and a 6-pin plug for the rear speakers. Wiring Pinout and Color Codes
Blue — Used to trigger an external amp or power antenna Pin 9 (Mute): Brown (less common on basic units)
Match each speaker wire to your vehicle’s speaker leads. Polarity matters for sound quality. If you swap + and – on a single speaker, you will lose bass response.
configuration found in most models from 1987 to the early 2010s. For systems without an external amplifier, the wiring consists of two main harnesses: a 10-pin plug for power and front speakers, and a 6-pin plug for the rear speakers. Wiring Pinout and Color Codes
Blue — Used to trigger an external amp or power antenna Pin 9 (Mute): Brown (less common on basic units)
Match each speaker wire to your vehicle’s speaker leads. Polarity matters for sound quality. If you swap + and – on a single speaker, you will lose bass response.