i suppose i could just solder the $5 part directly to the anker charger.
i should poke around more and see if there's a 'USB' mounting block which fits in the non-end block, where all corners are squared (instead of the two rounded).
then, install two USB ports in the front.
What did you use for stepping down to 5v and 2v? This seems like a great alternative to the more expensive one.
You can buy a USB charger for a cigarette lighter for a couple bucks.
You can buy a USB charger for a cigarette lighter for a couple bucks.
Just like Engineered2win suggested, I used a cheap iphone cigarette lighter charger. I took it apart to reduce its size and plugged a USB cable into it, I then cut the USB on the other end and used those bare wires to connect to wire up to the OEM piece. I then wired up the cig lighter to a 12v supply and Done.
I looked at 12v -> 5v step down transformers but they all had an amperage rating of 3a and I did not want to supply too much current to the iphone.