HAAALP!! Avic d3 whistles!?

[mrjoeyjiffy 10+ year member]

Hello all, I recently installed an avic d3 in my tahoe and I have the strangest problem. My headunit itself(not the speakers) has what sounds like alternator whine coming out of it, although it comes out even when the engine is not on, however when the engine is on it certainly goes with my rpms.

I've tried eliminating every variable there is, trying a million different ground spots, including going straight to the battery for power and ground with the same results. The only thing that eliminates it is by turning the screen off, not the entire head unit but just turning the screen off in the options menu and this whole problem goes away, is there anyone out there that knows how to fix this? Im banging my head up against a wall trying to figure it out.

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[mrjoeyjiffy 10+ year member]

No one has ever heard of anything like this? //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif I really need help on this.

 

[JuicyJeff 10+ year member]

Turn the radio up! Sorry i have never heard of anything like that