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Hi,my name is ***** ***** I will be happy to try to assist you with this.I may need more information in some cases to help with answering your question.
With what you have described here this sounds like an internal electrical fault in the radio itself.I have seen the radio act up/fail in the past before needing replaced for issues like this here.Since you had a display issue at one point and now no sound this sounds like the radio itself needs either repaired or replaced.This can also cause a battery drain in allot of cases.
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