My subwoofer pops when I turn off the car, but not when I turn it on. Also, if I turn off the sub amp while it's still receiving a signal it doesn't pop. I've done some searching and found some info on delay circuits that keep the signal source on for a second or so longer than the subwoofer amplifier. The how-to from Crutchfield only describes the diode and cap, but the diagram shows a transistor and relay, which is correct?
OEM Interface Forum » Amplifiers, Speakers & Subwoofers
subwoofer pops when turned off
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