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<blockquote data-quote="theCybe" data-source="post: 2758210" data-attributes="member: 558105"><p><strong>There are three harnesses. The one that's part of the car, the adapter(metra) harness, and the one that came with your headunit.</strong></p><p></p><p><strong> </strong></p><p></p><p><strong>OEM harness, just plastic plug</strong></p><p></p><p><strong>Metra harness, plug on one side, wires on the other</strong></p><p></p><p><strong>Headunit harness, plug on one side, wires on the other</strong></p><p></p><p><strong> </strong></p><p></p><p><strong>In this example, you're running the speakers off the headunit.</strong></p><p></p><p>At the <strong>=</strong>, the harnesses are manually spliced together. The wires are labeled.</p><p></p><p>(speaker)========(oem harness)=(metra harness)=(radio harness)=(radio)</p><p></p><p><strong>In this example, you're running the speakers off the amplifier.</strong></p><p></p><p>The headunit harness is spliced together with the metra harness - EXCEPT for the speaker wires</p><p></p><p>Those wires (on the metra harness) are connected to the output terminals of the amplifier instead.</p><p></p><p>The speaker wires on the headunit harness are taped off, clipped, or removed.</p><p></p><p>(speaker)=======(oem harness)=(metra) (radio harness)=(radio)</p><p></p><p><span style="color: white">.</span><span style="color: white">=====================</span><span style="color: white">.........</span>`=(amp)<span style="color: blue">rca.rca.rca.rca.rca.rca.rca'</span></p><p></p><p>Notice that the speaker wires from the headunit harness are NOT connected to the metra harness, instead the amp's output is tapped into that harness.</p></blockquote><p></p>
[QUOTE="theCybe, post: 2758210, member: 558105"] [B]There are three harnesses. The one that's part of the car, the adapter(metra) harness, and the one that came with your headunit.[/B] [B] [/B] [B]OEM harness, just plastic plug[/B] [B]Metra harness, plug on one side, wires on the other[/B] [B]Headunit harness, plug on one side, wires on the other[/B] [B] [/B] [B]In this example, you're running the speakers off the headunit.[/B] At the [B]=[/B], the harnesses are manually spliced together. The wires are labeled. (speaker)========(oem harness)=(metra harness)=(radio harness)=(radio) [B]In this example, you're running the speakers off the amplifier.[/B] The headunit harness is spliced together with the metra harness - EXCEPT for the speaker wires Those wires (on the metra harness) are connected to the output terminals of the amplifier instead. The speaker wires on the headunit harness are taped off, clipped, or removed. (speaker)=======(oem harness)=(metra) (radio harness)=(radio) [COLOR=white].[/COLOR][COLOR=white]=====================[/COLOR][COLOR=white].........[/COLOR]`=(amp)[COLOR=blue]rca.rca.rca.rca.rca.rca.rca'[/COLOR] Notice that the speaker wires from the headunit harness are NOT connected to the metra harness, instead the amp's output is tapped into that harness. [/QUOTE]
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