veeman

iTrader: (3)

That's not an aux input...that's for the steering wheel remote control. "Auxiliary Input: Versatile-Link Ready (KCA-121B Auxiliary Input)" as per Alpine's site and owner's manual. Do not plug an aux in to that location...read your manual. This i found as well which seems like another way to add aux input though the blue tooth input...again it equires an adaptor which virtually all Alpines usually do.

Gen.Ben

iTrader: (4)

lol my bad.. never used it just saw it there. Always just use USB. I assumed that was it because it seems like everywhere says it has aux.