Patazon Black Extension Dock Extender 30pin Adapter for iPod iPhone 4 4S
I was very happy to find this adapter to work with my new otter box, which prevented my iPhone from fitting in my docking station.  It worked great- for exactly 1 week! The adapter would not connect after that, no matter where I tried to plug it in. I tried it on my iPad and with regular charging cords to make sure it really was the adapter that stopped working. Returned to Amazon for a refund.