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I'm trying to install a subwoofer in my 2018 e63s and I'm getting low frequency Rumble when the audio is off in my car and I realize it is the exhaust notes that are pumped through the speakers processed digitally. This is causing interference in both voltage and frequency response. Is there any way to turn this off or bypass it easily when wiring in a signal converter to the subwoofer amplifier.
06-14-2018, 03:18 PM
