21 GMC mo
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I have a 2021 gmc sierra 1500 and my head unit is on but the screen is black with no audio but the reverse camera works I’ve done all the easy thing that people recommend and nothing. I had got a new oem head unit thinking that was the problem but it was the same thing. Also when I turn my truck on the Cadillac emblem pops rarely.
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Im having the same issue I thought it was my head unit so I just got a new oem one and it’s the exact same thing some times when I start my truck a Cadillac Symbol pops up but for some reason the reverse camera works just perfect
