Check this thread, post#26 by djbock
http://www.xoutpost.com/bmw-sav-foru...uctions-3.html
Not sure if the wires are the same between 01 4.4i and 04 4.8is though. I tap the same wire for my AEs.

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00 E39 DINAN S1 //M5 (82k miles)
06 E53 DINAN 4.8iS, born 2/18/2006 (126k miles) http://www.xoutpost.com/bmw-sav-foru...s-my-dslr.html
90 Straman Z32 TwinTurbo Convertible, (1 of 44 ever made) 5 speed, 444rwhp/451rwtq
01 360 Novitec Spider F1 (26k miles)