Static noise coming through speakers

[UMGixxer 10+ year member]

I just installed a Pioneer AVH P4200DVD and I noticed that while switching between sources I can hear this static noise (kinda like when you turn your radio to a station with no reception) and the noise increases with volume and I get this noise with the vehicle on or off. I also get some type of noise going to my subs during the same time. I unhooked the rcas from the unit and the noise is still there, I even tried to reground the unit. If anyone can help please chime in.

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[DMZamora]

Hello. I just noticed the same on my two days old AVH-P3280BT. Did you found any solution to that?