There is a speaker in the BCM. If you want to mute the thing entirely, you can certainly open it up and unplug it.
I was going to post the wire to disconnect to mute the driver's door, but if you do that, your security system/keyless entry will not work properly. Nor will your door ajar indicators.
The alternative is to install a NC relay in series with the speaker, and drive it with the driver's door signal, so it mutes with the driver's door only. Any interest?