X5 Seat Belt Alarm - Help!

[bmwsam8]

Hi everyone I've seen a few of these threads here and elsewhere but haven't been able to get much definitive answers. I should note that this vehicle is new to me (bought it off my father) 2006 X5.

My dad seemed to care less but the seat belt alarm on the drivers seat goes off continuously regardless of whether seatbelt is on or off (I always wear it). I don't mind the alarm in general - it is a great reminder to buckle up, but I don't think I should have to listen to the sound (which is quite loud and long lasting in this vehicle by the way!) when I am wearing the darn seat belt!

I don't really care what the solution is - I assume that I could pull a fuse to disable (disable other things too?), replace the belt assembly (or part of it?), reprogram something?

In other words, I am fine having the alarm in general, but am happy just to disable the entire function if it saves me money. My mechanic couldn't figure it out either but he is more of a foreign car specialist not a BMW guy.

Can anyone help? My wife looks like she is about to jump out of the car every time we drive!

Thanks
Sam