Infotainment system

[Underthedrift]

Hi all, when I start my 2019 Silverado the radio will come on as loud as it can go for a split second sometimes a couple seconds and then go back to normal volume has anyone else heard of this? The dealership can't seam to figure it out. They just replaced the radio controller and said it should be fixed, not. Thanks

Edited November 2, 2020 by Underthedrift
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