Question about Sony CDX-MP40 CD Player

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Cdx-mp40 Installed the headunit, the unit ejects and takes CDs so there is power but nothing else happens. All power leads are connected and the earth is connected. I have switched the yellow and red leads as suggested in the installation guide. The CD sometimes auto-ejects when the face is released but not always. I have an illumination lead from my car which doesn't connect to anything on the CDx-MP40, i presume the face is powered from the red and yellow leads. Any thoughts...

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Re: cdx-mp40

You are correct, the unit powers entirely from the red and yellow leads. Your symptoms sound like a unit that isn't getting power on the red (switched) lead. The most likely cause is a blown fuse in your vehicle's fuse box.

Posted on Mar 15, 2007

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