I like to put my radar detector near the dash, not up high on the windsreen. I like to hide the detector wire where the dash meets the windscreen and then run the wire down the side of the dash and normally hook in at the passenger footwell. Most cars have auxillary fuse outlets down near or around the passenger footwell. The X5 has a fuse panel there, just no maps as to what each fuse is for. Does anyone know?