Exhaust Sound through speakers

[Kashy]

Sit in the back seat, pull down the rear of the headliner (it’s magnetic)

disconnect the plug up there (there is only the one)
It’s ANC anti noise canceling. It will solve 99% of the problem if not 100%

I’ll try this out

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[Illini4]

I’ll try this out

Thanks, but I don't have a headliner - it's a convertible.