Originally Posted by saab900
So Ive got a bit of experience with automotive wiring under my belt over the past year and my old idea for zunes popped back up.
This guy got the closest I can find
Where he got stuck is the switched power trigger that the zune needs to receive to send audio out of its bottom cradle instead of the headphone jack. Has anyone figured out how this works or can any body tell me how much voltage the zune would need to trigger the audio out of the bottom? My thought is I could bench test it with 12 volts but Im not willing to risk pumping 12 volts into my zune and fryin it.
Any help would be much appreciated!
I'm not quite sure what exactly you want to do... But this may help.
Zune uses USB to communicate to the PC. USB port power is 5VDC, 500mA max. If you put 12V onto a power pin, I suspect you will create damage.
I've never seen details of the zune port pin out, so in addition to the 4 std USB signals, I don't know the details of the other pins. There may or may not be a trigger pin or a trigger data command that says to send data out on the bottom pins... but there doesn't necessarily even need to be one. It's easy enough to turn that on or off, or just let it always be on... if the zune is in a dock the signal can be used, and if not, so what?
And yes, despite the other post, the differences between iPod and Zune pinouts could be significant.