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Reply To: 2015 Sierra radio problems

May 16, 2019 at 4:24 pm #538344
gmctc
Participant

If your truck has the Bose sound system, the amplifier is a separate module and it could be failing. My truck does not have the Bose system, so I am not sure where the amp module is located. I seem to recall hearing that it is located on the rear cab wall, but don’t quote me on that.

Good luck!

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