On the 06 there is no pairing button. If you dont have the specific phone holder trays in the center console. When your first turn your X on it is in pairing mode. it stays like that i think for like 2 minutes. so go into your x. turn your key and turn the radio on. Im guessing you have mid. then click the phone button on the mid it should say please wait or searching. put your phone into pairing mode it should find your x. IF you dont know the passcode look on the bluetooth module sticker in the rear of the x. All this info I read in the manual and on this forum. hope it helps you out.

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E53 06 3.0i

wishlist
Comfort Seats
speckdock 2.5

Mods
Air suspension - wip
skid plate replica - in box
OEM sunroof deflector
OEM bluetooth streaming
navi,dsp,tv retrofit - wip
Low prof roof racks
2 directtv satelite tuners
Grom audio usb2
quarter and back window sunshades
2 10"subs- boxes opposite sides/Alp MRP-M850
rear heated seats retrofit
rear footwell lights retrofit
remote window roll up