How To Wire A Harness For A Car Radio

By Jeff Wincott


All major car manufacturers use harnesses to join under dash wired mechanisms to each other and to power supplies and other components.

Pull the unit out of your dash panel. On the rear side of the machine you'll see a lot of wires connected. This is your wiring harness and will likely be clipped to the device. Unplug the wires from the harness. Finally, identify the wires which are coming from your loudspeakers and are joined to the harness and disconnect them by pulling them loose from the harness.

Numerous aftermarket car audio accessory companies make harnesses made to interface with any special automobile. Attaching the harness once the radio is brand new and fresh from the box is easier than attempting to do it while inside the automobile, and rates a mobile radio setup greatly. In addition, it ensures all wires are assigned and safely connected.

A snap on wire harness is formed to conform to the coloured wire codes on most aftermarket head unit manufacturers. This will allow it to be simple to connect, change and troubleshoot any part of the sound system. Let it be known that setup, the wiring diagram and harness will change based on automobile manufacturer. The wiring harness may also change by make and model year of the auto.

Consider the back of the harness' packaging and the radio's guide to meet up the colour coding and wire descriptions. Pull off the precut insulation ends on both the radio's attached harness and the new car harness. Twist any bare wires down tightly to ease in insertion into the butt connectors.

Slide the 16 gauge connectors on the radio's harness, then crimp it using the cable crimper. Slide the matching wires from your new vehicle's harness to the other ends of the connectors, and crimp then firmly as well. Snip off the ends of the zip ties with the cable - cutting end of the tool.

A bad car stereo wiring harness can prevent your car stereo from working. When this happens you either have to pay a mechanic to replace this, or you have to replace it-yourself. Step one would be to disconnect it. For the beginner who understands little of a car's wiring, this is a simple task that can easily be performed.

In many instances, newer car stereos may have more wires compared to the old car stereo. Within this situation, both terminate the wires not used or use the fresh harness connection slots to include wires for additional parts, such as loudspeakers, subwoofers and external amplifiers. Whenever possible, try to match new color-coded wires coming from your replacement stereo together with the original equipment suppliers harness.




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