WoodyF3
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Hey, I found this on another forum. Lexus issued this Technical Service Bulletin for this issue on 2019s, though neither they, nor dealers are quick to tell you about it. This calls for replacement of an amplifier with an updated version. I just had mine done and there is a noticeable improvement. If for some reason this attachment doesn't work, the TSB # is L-SB-0020-20 L-SB-0020-20 (1).pdf
