After doing some digging on a issue with my K40 that was installed when i purchased my x5 used I came across the solution to my issue..... Constant beeping when turned on. I have read that this is caused by a faulty rear sensor... question is I can't locate this rear sensor... any ideas on where it is typically mounted/solutions to this issue for those that may have a K40 on their vehicles? Thanks in advance guys.

-D