All my 12V sockets are the same and they are deep enough for cell phone/MP3/Navi chargers.
Maybe yours has something stuck in it or you are not pushing hard enough.
I have the 2008 CX-7 GT With Tech Package and Remote Starter and Keyless entry and start.
The problem I have is that when I remote start my CX-7 all the doors lock automatically, I am unable to use the keyless entry fob to unlock the doors and also the small black button on the door handle does...