The fuse panel for the X3 is within the glove compartment. Getting to a power source in that neck of the woods is a bit complicated, as you have to remove the glove compartment. Ask the SA at your local dealership for instructions on installing the rear hatch switch, as it also contains detailed instructions on connecting to a power source, and instructions on removing the glove compartment as well. GL!

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I'll drink your poison if you fill the cup. You make me crazy, baby, don't let up.
Break Free, DMB 2006