Switch to disable reverse parking sensors

[lastmile]

Any hints on how to wire up a simple switch to disable the parking sensors on my MY08 Liberty sedan? (or at least the alarm)

Quite often I have my bike rack fitted and the sensor alarm screams bloody murder on the long reverse out of my garage and up the driveway.

[Deep Heat]

Most reversing sensors have a switch to turn them off. It should be in the boot somewhere.