This is a great post that cleared up a lot of confusion for me. I'm negotiating on a 2009 328i withOUT iDrive or BMW Assist/Bluetooth.
This post clearly explains that I will need the Y-cable.
Question: was this infamous y-cable provided with the vehicle? Should I be expecting that it is stuffed in the glovebox somewhere on this CPO vehicle I'm looking to buy?
If not, then I guess I'll buy one, but on ShowBMWUsa all I see is
Which is an even more confusing monstrosity, and it's $100! Moreover it does not look at all like what I expected to see. Why the power adapter when it should be able to charge through USB? Where's the Apple connector cable part? See what I mean...confusing.
I see some on Amazon but with dubious reviews. http://www.amazon.com/iDRIVE-ADAPTER.../dp/B003P6DGMK
At least that one looks like what I expected to see.