Originally Posted by skier219
Try using only the white apple dock cable. BMWs produced after Sept/Oct 2011 no longer need the Y-cable. I don't know if this will solve your problem, but you can at least simplify the wiring a bit.
I don't have Tech package or any navigation packages and need to use the Y cable to connect the iPhone 3Gs and iPhone Touch...... Mine was built is April 2011.....