Re: Pioneer HU Volume Problem
Turn "ASL" off and see if it still does it... You may have a defective internal mic on the H.U.
Also, do you place your cell phone near it? Some of the Pioneer's internal circuits have inbuilt electromagnetic ineterference rejection, which wll limit the amount of noise (and sometimes volume) that can be played back. If a cell phone is placed near it, you'll either get a pulsing buzz every now and then, or the volume will suffer every now and then (as it is trying to cope with the intense radio waves from the cell phone)
Source: OEM Sony in dash 6 CD MP3 / Rockford Fosgate 360.2
Front Stage: Boston Z6
Rear Fill: OEM 6" splits
Subs: JL Labs 13TW5 (x2)
Amplification: Precision Power A1000-2 / JL G-Max
Accessories: Stinger / Dynamat / Optima
System Power: 2050 WRMS @ 12.5VDC / Termlab measured 140.1dB @ 45 Hz
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