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becker grand prix 7990 no sound!
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04-27-2008, 11:27 AM
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Tool Pants
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Join Date: May 2002
Location: San Jose
Posts: 1,889
I do not know that radio.
When people put in the Becker TrafficPro you need to jump 2 wires in order to power the amp. Maybe you need to do something like that, unless that is what you have already tried.
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