Short answer: No one's ignoring you. No one truly knows. Not enough information about the ANC is available.

If you're determined to do this project, try it at your own risk, and report back to us on the outcome! But if I might make a suggestion, do it after your warranty expires. That way, the dealership can't deny any warranty claims due to aftermarket tinkering. An example is, some of us has had our ANC replaced under warranty. We were getting intermittent booming sounds from the speakers. The dealer replaced the ANC device and the two front speakers. If your ANC decides to fail (even if it wasn't the fault of your stereo upgrade) then the dealer can/may deny replacing those components under warranty.

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