Griffin iTrip Car Charger/Fm Transmitter: QUESTION!

[Massie]

Hi all,
I was just given one of these combination car charger/fm transmitters, and while it seems to work just fine with my iPhone 4, I noticed that the dock connector doesn't go all the way into the iPhone--a bit of the metal connector of the plug (the piece on the left in the image above) is visible between the bottom of my phone and the plastic of the plug.

Is that anything I need to be concerned about? The Griffin site says it's compatible with all models; is that extra bit of metal something that's necessary for older models of iPhones?

 

[takeshi]

If it's making a proper connection (i.e working), no.