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Old 19th September 2017, 04:23 PM
audifin audifin is offline
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Join Date: Aug 2013
Posts: 330
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FWIW mine was like that when I bought the car, i.e. only very few channels worked and only in very specific locations. Turned out the Amp was broken - although I couldn't find any way to verify this. But I bought a new second hand one and it works perfectly.
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Audi A8 D3 2006 - 4.2 TDI in Phantom Black
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