Make these connections only after verifying the proper circuit on your radio harness with a voltmeter. With the key OFF and the negative test lead of the voltmeter firmly touching a bare metal chassis part of your car, begin probing the wires in the main radio harness with the positive test lead. The constant 12V+ circuit should read a continuous 12 volts or higher. Once you’ve identified the constant 12V+ circuit, strip back about 1/8” of the insulation. Now take the positive test lead and insert it into the wire stranding so that you can now probe for a suitable ground location in the dash cavity using the negative test lead. Bare chassis metal is the recommended ground spot. The voltmeter will read a constant 12 volts or higher when you have found a good ground point. Attach the BLACK ground wire to this spot with either an existing bolt or screw or use a metal piercing screw. You also have the option of splicing into the ground wire in the main radio harness. Probe the remaining wires with the negative test lead until you again find a circuit that reads a constant 12 volts on the voltmeter. When you’ve found a circuit that reads constant 12 volts, turn the dash light dimmer control to make sure you have not probed the illumination dimmer circuit. If the circuit continues to read a constant 12 volts or higher regardless of the dimmer position, you have found the ground wire. If not, continue testing until you do. Some vehicles do not have a ground wire in their main radio harness and instead ground through their mounting brackets to the dash. In these cases, you will have to ground the black wire to the bare metal chassis inside the dash . Once the ground wire is connected, please finish your wiring connections by splicing in the external YELLOW wire from the vehicle specific harness.
Vehicle Specific Harnesses that require wiring connections:
PXHFD1 – connect the Yellow wire to constant 12V+ & connect the Black wire to ground. PXHFD2 – connect the Yellow wire to constant 12V+ & connect the Black wire to ground. PXHFD3 – connect the Yellow wire to constant 12V+ & connect the Black wire to ground. PXHGM3 – connect the Yellow wire to constant 12V+ & connect the Black wire to ground. PXHVW2 – connect both the Black and Black/White wires to ground.
2.4 Installation at the CD Changer Location
In this section you will learn how to install the PXDP in the factory CD changer location. If your vehicle is equipped with a factory CD changer you will need to disconnect it from the factory pre- run harness in order to connect the PXDP interface. If your vehicle is not equipped with a factory CD changer, you will need to locate the factory
1.Connect your vehicle specific Harness to the factory
2.Make any necessary wiring connections on your vehicle specific harness. Please see section 2.3 for details on making these wiring connections.
3.Now that the interface is connected to the radio, you will need to test the operation of the interface before permanently running the white iPod docking cable or
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