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When head unit is removed from radio why does the lose its setting

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Initially, pls confirm that the yellow wire is connected to a constant B+12 such as the + terminal of the battery. The red goes to a switched B+12 such as the ACC/IGN switch. If problem persists with the two pre-conditions satisfied, then there is an internal fault to the unit's logic circuitry.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information. Good luck and kind regards. Thank you for using FixYa.

Posted on Nov 11, 2008


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Hello There.

Thats an interesting one. My first suggestion would be to look at the DVD navigation unit in the trunk, does it have any sign of life, i.e will it eject the map dvd is there a blinking redlight etc, if there is nothing then thats most likely your problem if there life in it then I would suggest having a closer look at all the connections in the trunk. You need to remove the side cover in the trunk and check the connections.
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The cheapest way to get this repaired is by process of elimination. If you think the DVD unit in the trunk is faulty I would buy one from ebay if you find this doesn't solve your problem you can always resell it on ebay without losing money and the same with your head unit.
Hope this helps. Good Luck.

If my answer has helped you, please rate me on Fixya.

Many Thanks.


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Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

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