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  1. Pioneer head unit noise/whine in 2001 WRX

    Equipment Repair and Modification
    Hi guys, not sure where this post belongs, figured I'd try here. So I have an 01 WRX, with a pioneer headunit installed by the previous owner, there is no amp at this stage. I believe the unit is an AVH-X2600BT, or something very similar from pictures I can track down. I began to notice the...