| Wire Color | Function | Description | | --- | --- | --- | | White/Black | Front Left Speaker (+) | Connect to the front left speaker positive terminal | | White | Front Left Speaker (-) | Connect to the front left speaker negative terminal | | Gray/Black | Front Right Speaker (+) | Connect to the front right speaker positive terminal | | Gray | Front Right Speaker (-) | Connect to the front right speaker negative terminal | | Green/Black | Rear Left Speaker (+) | Connect to the rear left speaker positive terminal | | Green | Rear Left Speaker (-) | Connect to the rear left speaker negative terminal | | Purple/Black | Rear Right Speaker (+) | Connect to the rear right speaker positive terminal | | Purple | Rear Right Speaker (-) | Connect to the rear right speaker negative terminal | If you're using an external amplifier, you'll need to connect the amplifier to the head unit and speakers. The following wires connect to the amplifier: