Thanks, Alex!
I was using this Pioneer cable just to have audio from my 4s (charged from USB and plugged into the aux in) then my work forced me into a 6 so all new cable and under quick time too, so hasty purchase on my part with the cable.
I'll get the amazon cable and return/burn the eBay one.
I was curious though, I read about this adapter but have no idea what it would be for.
http://www.realoem.com/bmw/showparts...71&hg=65&fg=95
Thanks again for clearing up my confusion!!!!