It's definitely a speaker. Judging by the location if it's part of the radio it probably only produces surround effects. There's no surround effect in a phone call, that could explain why you don't hear anything though it using the phone. OTOH:
Quote:
that OP picture looks like the BMW assist speaker now that I look at it, I noticed when I called them the call is faint and doesn't come through the regular car audio speakers. It comes from under the dash.
|
That's a possibility. They might use a separate speaker for BMW Assist in case the radio is broken or stolen.