There is a fuse panel behind the glove box - look on this site for the directions for replacing the A/C final stage resistor and it will show you how to get to this fuse panel. I used a fuse tap and plugged it in where the phone fuse should be since I do not have a BMW phone. Turns on and off with the key in the ignition.

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2001 X5 3.0i (PP/WP/AP) Traded at 213K miles
RARE White on Black - Why does everyone get Tan??
First E53 with 215s on XOutpost!!