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How to Wire a Pioneer DEH 730

Updated April 17, 2017

Adding a Pioneer DEH 730 receiver to your vehicle's audio system allows for greater control over audio output and can greatly increase your listening pleasure while riding in your vehicle. The Pioneer receiver offers several upgrades over most factory stereos, including better display and advanced sound options. The receiver also features two pairs of RCA "pre-outs," which allow additional amplifiers to be added to the stereo system.

Purchase a wiring harness specifically made for your vehicle. Every automobile manufacturer uses a stereo wiring connector that connects the factory receiver to the rest of the stereo system. These connectors can vary greatly in shape and size. Because there is not a universal connector used in all vehicles, it is important that you purchase the correct wiring harness for your vehicle.

Disconnect the factory stereo from the wiring connector inside the dashboard of your vehicle. There are several wires coming directly from the rear of the factory stereo. These wires run to a wiring connector or plug. Unplug the factory stereo from the wiring connector.

Connect the new wiring harness to your Pioneer receiver by matching the coloured wires of the wiring harness to the coloured wires of the receiver. Twist the end of each wire from the receiver to the matching wire of the wiring harness.

Wrap each wire connection with black electrical tape. This will prevent any damage to the receiver or stereo system should the wire come in contact with another wire or metal inside the dashboard.

Plug the new wiring harness that is now connected to the Pioneer receiver into the factory connector.

Test the connection by starting your vehicle and powering on the Pioneer receiver.

Identify the purpose of each factory stereo wire inside the vehicle's dashboard. Each wire in a vehicle's stereo system has a purpose, whether it is to provide power, ground the unit, or connect the receiver to the speakers. Without the aid of a wiring harness you will need to identify each wire in order to proceed with the installation of the Pioneer receiver.

Twist ends of the factory wires to the ends of the corresponding wires of the Pioneer receiver. Use a wire cutter to strip the plastic away from each wire if necessary.

Wrap each wire connection with black electrical tape. This will prevent any damage to the receiver or stereo system should the wire come in contact with another wire or metal inside the dashboard.

Test the connection by starting your vehicle and powering on the Pioneer receiver.

Tip

A wiring harness should be used if at all possible. Doing so will not only save you time, it will also ensure that each wire from the receiver is connected to the corresponding factory wire. Pioneer follows a standard colour scheme for their wiring in the event a wiring harness is unable to be used or the colours of the wires from the receiver do not match the wire colours of the harness. It is as follows: Red -- 12 volts switched power Black - ground Yellow -- 12 volts constant power White -- positive left front speaker White/Black -- negative left front speaker Gray -- positive right front speaker Gray/Black -- negative right front speaker Green -- positive left rear speaker Green/Black -- negative left rear speaker Purple -- positive right rear speaker Purple/Black -- negative right rear speaker

Warning

Disconnect the negative terminal on the vehicle's battery before disconnecting the factory stereo or attempting to wire the Pioneer receiver. This will prevent any electrical damage to your vehicle or the stereo system.

Things You'll Need

  • Wiring harness
  • Electrical tape
  • Wire cutters
  • Wiring diagram
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About the Author

Ryan Carter began writing in 1996. He has created content for television, radio and online publications. Carter holds an Associate of Arts in psychology from Delta College and a Bachelor of Business Administration in marketing from Saginaw Valley State University.