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I cut my harness wires and I shouldn't have
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<blockquote data-quote="Deiimos" data-source="post: 8856187" data-attributes="member: 682903"><p>Always a bad idea to cut stock harness unless you take full note of the wiring, <strong>for future readers</strong>. Any duplicate colors, mark them with a piece of masking tape and write in sharpie matching number on both sides of the cut in case you need to hook them back up.</p><p></p><p>With a bit of voltage measuring, and tracing which direction the wires go, you can possibly make educated guesses on where the wires connect.</p><p></p><p>Example. Measure the voltage on the two skinny blue wires, referenced to ground and see what you get. One is labeled as low level right rear preamp signal, so will have no DC voltage or a low amount and this wire goes back to the amplifier (should also have preamp audio on it). The other blue wire says Control Signal and goes to the steering wheel controls if I’m looking at the full diagram correctly.</p><p></p><p>Do the same for the tan wires. One is another preamp low level wire for the subwoofer, the other is a control wire. They both go to the amp, but if you can figure out which is the LF LOW LEVEL SIG wire, and what pin it is on the amp harness, you then know where this wire goes, so this maps them both out.</p><p></p><p>The purple wires, one says Supply voltage and looks to feed the steering wheel controls with DC voltage. The other says turn on, perhaps like a remote wire and should have DC when the stereo is turned on. The turn on wire of course would go back towards the amp, and the other towards the steering wheel. (some continuity tests will tell which goes where if it isn't obvious which runs to where).</p><p></p><p>Orange wires, one is 12v+ for the stereo, so it goes the pin labeled B1 at the connector and will have 12v on it. The other orange is a data wire.</p><p></p><p>This still is not easy to do, but this is how I would start, slowly measure / test, an oscilloscope helps map out the audio wires, but playing sinewaves and measure low AC voltage can work with a multimeter.</p><p></p><p>Might end up having to take this to the dealer, or maybe even an audio shop that wants to take a stab at it. This could be very challenging, and risk of damageing something if any of the wires are wrong.</p><p></p><p>Good luck with it.</p></blockquote><p></p>
[QUOTE="Deiimos, post: 8856187, member: 682903"] Always a bad idea to cut stock harness unless you take full note of the wiring, [B]for future readers[/B]. Any duplicate colors, mark them with a piece of masking tape and write in sharpie matching number on both sides of the cut in case you need to hook them back up. With a bit of voltage measuring, and tracing which direction the wires go, you can possibly make educated guesses on where the wires connect. Example. Measure the voltage on the two skinny blue wires, referenced to ground and see what you get. One is labeled as low level right rear preamp signal, so will have no DC voltage or a low amount and this wire goes back to the amplifier (should also have preamp audio on it). The other blue wire says Control Signal and goes to the steering wheel controls if I’m looking at the full diagram correctly. Do the same for the tan wires. One is another preamp low level wire for the subwoofer, the other is a control wire. They both go to the amp, but if you can figure out which is the LF LOW LEVEL SIG wire, and what pin it is on the amp harness, you then know where this wire goes, so this maps them both out. The purple wires, one says Supply voltage and looks to feed the steering wheel controls with DC voltage. The other says turn on, perhaps like a remote wire and should have DC when the stereo is turned on. The turn on wire of course would go back towards the amp, and the other towards the steering wheel. (some continuity tests will tell which goes where if it isn't obvious which runs to where). Orange wires, one is 12v+ for the stereo, so it goes the pin labeled B1 at the connector and will have 12v on it. The other orange is a data wire. This still is not easy to do, but this is how I would start, slowly measure / test, an oscilloscope helps map out the audio wires, but playing sinewaves and measure low AC voltage can work with a multimeter. Might end up having to take this to the dealer, or maybe even an audio shop that wants to take a stab at it. This could be very challenging, and risk of damageing something if any of the wires are wrong. Good luck with it. [/QUOTE]
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I cut my harness wires and I shouldn't have
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