dont know which wires are which, trying to install after market stereo
Like John suggested Adapter plug for a aftermarket radio fee any the position from 10 to 20 funds that way you dont go by the fuss with slicing the inventory harness and blowing a circuit or perhaps worse voiding your assure the dealership like to discover something thats no longer in assure to make you pay for it.
2002 Nissan Frontier Stereo Wiring Diagram Car Radio Battery Constant 12v+ Wire: Pink Car Radio Accessory Switched 12v+ Wire: Blue Car Radio Ground Wire: Gray or Chassis Car Radio Illumination Wire: Red/Blue Car Stereo Dimmer Wire: Red/Yellow Car Stereo Antenna Trigger: N/A Car Stereo Amp Trigger Wire: N/A Car Stereo Amplifier Location: N/A Car Audio Front Speakers Size: N/A Car Audio Front Speakers Location: N/A Left Front Speaker Positive Wire (+): Pink Left Front Speaker Negative Wire (-): Blue Right Front Speaker Positive Wire (+): White Right Front Speaker Negative Wire (-): Black Car Audio Rear Speakers Size: N/A Car Audio Rear Speakers Location: N/A Left Rear Speaker Positive Wire (+): Light Green Left Rear Speaker Negative Wire (-): Violet Right Rear Speaker Positive Wire (+): Blue Right Rear Speaker Negative Wire (-): Pink