google peake and call or email them direct for info on your 05. I am also looking for the srs-16 for my 2001 x5 3.0. I researched the torque ap and found out you cant get the ap for an iphone but can for a droid. That would be a cool way to go.
Anyone needing a srs reset tool for 2001-03, i am more than likely going to buy new from peake and will post when i am done with it for resale before putting it on ebay.