I steered away from my trusted Crutchfield
to save a few dollars using Sonic Electronix. MISTAKE!! I just wanted to warn you before anyone else does the same. Not only did they sell me the wrong adapter cable, they left out several other things I needed for my iphone 5 interface. If anyone has installed an aftermarket head unit, you will find that the adapter cables are very expensive and it matters if you have an amplified or non amplified system.
Crazy thing is, after spending half the day on the phone with tech support, I corrected my items using the crutchfield website to tell them what I needed.
Rant over, time to head home and drink this one off