12" Long factory amplifier integration harness for select Ford vehicles. 4 RCA Plugs plug into the aftermarket radio's pre-amp outputs. One 8-pin plug and one 8-pin speaker plug. 1.5K Ohm resistor can be used on the amp-remote wire to eliminate turn-on pop. Interface harness that is plugged in behind the radio and retains the factory amplifier. Harness is set up for low level inputs only using the RCA Outputs from the aftermarket radio. Compatible with select 1986-2000 Ford vehicles. Connections: Yellow - 12V Constant. Red - 12V Accessory. Black - Ground. Orange - Dash Light Dimmer/Illumination. Blue - Amplifier Turn-on.