I wondered about that. There's virtually nothing I can do on the car side of the equation. I can push the adapters button for three seconds to make its blue light blink (I assume that makes it discoverable or something), but that's about it. The display has no commands and the status buttons (call, ph. book, history) are greyed-out.

The only un-pairing I can do is from the phone. Is there a menu somewhere that I missed?

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2008 ML350
2007 Honda Element
2007 Honda Accord
2009 Honda Civic