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JVC KD LHX552. When you turn evey thing seems ok. but then the sound keeps going up and down. and the voice keeps going ai all langaues. even whe you turn the car off it doesnt stop. have you any ideas on how to fix this problem.?

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I sugges that you read first the instruction manual look the word trouble shooting then try to analize wich one you want to solve your problem settings. Check the wirings too.

Posted on Apr 29, 2008

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I'm not sure what you're talking about when you say "the sound keeps going up and down and the voice keeps going ai all languates..."

But as far as when you turn the car off and the unit doesn't turn off...

It sounds like you're tapped directly into the battery power and not to the vehicle's switched fuse box.

You should take at your vehicle's owner's manual and find out where the "Aux power" is located (or purchase a compatible adapter wiring harnes kit so that you can plug the cabling directly into your stock wiring harneses).

With a head unit, you don't need direct battery power (just accessory power). Only Amplifiers need a direct link to the battery through a large capacity cable. Amplifiers require the use of an "Amp Control" cable (typically blue or blue with white stripe) that tells the Amp when to shut off.

If you're tapped directly to the batter (not to "Accessory" power) then you KD LHX552 doesn't know that you've turned the ignition off. Re-routing power to an accessory (or Aux) lead in your vehicle's fuse box should fix the issue.

It might even fix you're "unexpected" performance from the device.

**Please post feedback and rate my solution if it helped you!

Lounatech

Posted on Apr 24, 2008

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