i don't have the CDA-105, I've got a CDE-102, real similar, and i know the HU when on the ipod setting is basically decoding the encrypted song information from the ipod (alpine paid apple for the decoding information), so under the ipod setting all it can do is read actually files, think of it as reading mp3's of a usb drive... as for using a 3.5mm jack on the aux setting, you shouldn't have a problem streaming pandora or anything, i mean it plays through headphones, so it should play through the HU without issues
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