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Hi all

Looks like my car has developed a fault with amp. After replacing the 12V Battery, the sound works fine for 15 minutes or so.. then the middle speaker and subwoofer start making loud distorted noises and i have to turn the audio off. If i disconnect both positive and negative terminals off Battery for 5 minutes.. then the sound system works fine again for a while. Then the squiky noise is back. 

Lesson learned: When replacing Battery use CMS device. Although i am not sure if it would have helped in my case.. better not to take any chances on a car packed with complex electronic devices. 

Now i am looking for recommendations for a good repair shop please? My amp is Toyota standard unit, not ML. No signs of water damage. 

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I don't understand why your amp has a developed a problem like you describe just because of a Battery change.

The LS430 amp has a known problem of power failure which happened to mine aswell. It was repaired by

SVT Services in Edinburgh - might be worth giving them a ring

Hope this helps


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