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 t