I'm having issues getting my stereo to goto AUX mode in my 01 X5 4.4. I've found various little threads there and there about being able to install an aux input into my cd53 e39/e53 cd player so I can run my Treo through it. At this point i've got about 22 windows open, all pointing in different directions as to if I can install an aux input. I've looked on EAS's site, and it says that I need an 02 or newer E53. I've also found threads that say as long as my SW version on the cd player is 50 or more, I can do it. Then i've found E39 and E46 pictures where either the information changes, the main harness pins (larger pins in the pic below) are round instead of flat like mine, and they've got 10 pins for the aux input where i've got 12 pins.
I've already got resistors, capacitors, and random wiring harnesses to connect directly to the pins....I just need to know if my stereo is capable and which pins to use.

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