I made this iPad mini mounting tray that I was going to use on an install and decided to go a different direction. It is a fiberglass mold of the iPad mini and include an integrated lightning to 30 pin adapter with the built in DAC. Which means that you can use your standard ipod connect cable with this to integrate to any head unit that is iPhone/iPad Mini compatible. It also has four rare earth magnets integrated into the pan to hold the ipad mini in place. It still needs bondo, sanding and finish work but is a great starting point.
I'm asking $100 + shipping for it OBO. It's a steal. The adapter was $45 alone.