You know what I love about you OP? You had a problem, but instead of coming here to complain about it, you built your own solution from scratch and came here to show it to us! If only all of MacRumors users were like you.
The problem with this dock is that now the headphone jack is at the bottom. I don't know who designed this, but the person forgot to add a jack to plug in the back, and one at the base to stick in the audio jack the iPhone5 has at the bottom.