Question about Sony CDX-C480 CD Changer

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I have a Sony CDX-C480 and the display is so faint that it cannot be read. I read some of the posts which suggested a bad faceplate so I found one on eBay and it did not correct the problem. So I have now replaced the chassis and still the same problem. I read something about a bad ground from the chassis... is that one of the connections in the wiring harness? Other suggestions?

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The black wire from the radio wiring harness is the ground.Where do you have it connected? It needs to be connected to a screw that is connected to a metal point on the car. So I would verify that the ground is good. Try moving it to another spot. That could be causing the problem. Make sure that the metal contacts where the faceplate connects to the radio deck are clean,not bent, and making complete contact with each other. Make sure that you do not have any loose or exposed wires that can cause a problem with the unit. Red wire goes to switched 12v power, yellow goes to constant 12v and black goes to ground. Let me know what you find.

Posted on Sep 29, 2009

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Here is the wiring information for your car.
Please replay if there is any further help needed.

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