ajdly00 wrote: ↑Sat May 20, 2023 11:23 am
was wondering if anyone knows how to disable ANC on this vehicle. tried installing a subwoofer to my 2022 and i have the same setup as this but whenever i turn off the car the subwoofer vibrates loudly. i suspected the anc system so i unplugged all the mics but that didn’t work.
When you install a subwoofer in one of these vehicles, the ANC system hears the subwoofer's
output as being part of the engine/road noise it's supposed to cancel out. So, it emits an out
of phase bass signal to block the sub's output. When the ANC doesn't hear any bass, it stops
playing the out of phase signal, and the sub becomes audible again. Until the ANC kicks in
again, and on and on.
You cannot disable it. Nissan could program it out, not sure if they will, and it
would cost you.
Simply put;
#1: Physically disconnecting the microphones in a vehicle has become a popular way of
dealing with this issue, not necessarily because it’s the easiest but it’s the one that
works almost every time. The tricky part is making sure all the microphones are
disconnected. The most popular locations include the headliner (front and rear
of vehicle) and inside of the door panels (driver and passenger front doors).
#2: Disconnecting the signal wires at the factory radio, amplifier, or ANC module is a
guaranteed way to stop the system from interfering. Find where the microphone or
engine RPM signal wires are going, and connected in relation to the ANC system.
By interrupting these wires, you eliminate the possibility of the system damaging your
audio signal.
So, there you have it.
