What I am curious about for Carplay Integration, it isn't safe to look at the infotainment screen while driving for directions, which is why, in my VW they helpfully put the next turn in the MFD (next to the speedometer). Does Apples solution allow directions, next turn, to be sent to such a display?
That's a good point. I hope they do. Glancing at the screen at a red light still isn't bad, though.
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I like your thinking. Shouldn't be too hard to make it accept DC power - like most electronics is runs on DC power naturally. If you look at the teardown, there is a small ac-dc converter in there, outputting an odd 3.3V and 2.09A. http://weblog.rogueamoeba.com/2012/06/19/airport-express-disassembly/ The tricky part will be finding a 5V-3.3V stepper, if you don't want to build one yourself.
3.3V, that's annoying. Looks like I have some research to do.
Edit: There are instructions I found here: http://www.instructables.com/id/Converting-a-Broken-Airport-Express-PSU-with-an-US/?ALLSTEPS
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