Strange thing just happened to me and I've reproduced it a few times... I was sitting in my living room trying to check my work voicemail from my iPhone 4 (which happens to be running iOS beta 4), so I dial my work number but I don't hear any ringing through the headset. I look at the screen and there's the pop up saying it's connected to General Motors as a source. Weird. I run out to my car and lo and behold, I hear the ringing and work voicemail greeting through the speakers of the Camaro... With NO keys in the ignition. Anyone else have this glitch?