Factory used and tested under dash wiring harness for all 1971 Mercury Cougar and Ford Mustang cars with factory AM/FM or AM 8 Track stereo radios. This harness plugs into the speaker plug of the radio, and connects the door panel wiring harness with door speaker option in a 1971 Mercury Cougar or to the A pillar post where it connects to the door wiring harness that has the speaker plug for the door mounted speakers in 1971 cars. White speaker wire goes to the passenger side speaker, and the orange colored wire goes to the driver side speaker. This is important to know so that your balance on your radio works properly. Tag on wiring is marked D1ZB-19A041-A, the MPC lists part number D1ZZ-19A041-A
Replaces part # D1ZB-19A041-A