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JVC KD-X40 Support Questions

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Usb Problem!!
My stereo wont read any device plugged in the usb port

My Kd-x40 Wont Connect To My Iphone 4s Anymore After We Plugged A 3gs Into It.
It will not recognize my iphone 4s since we plugged in a 3gs. all it does is charge, but does not sh...

Why Does My Jvc Kdx40ud Front Buttons Not Working But Volume Knob And The Remote
Why does my JVC KDX40UD front buttons not working but volume knob and the remote works. Over all sys...

Why Does My Jvc Kdx40ud Front Buttons Not Working But Volume Knob And The Remote
If I recall correctly, these units have the front panel connected to the main board via a small ribb...

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