I got a cradle in April and used it as instructed for 3 months until the problems started.
On my rural route, the constant shaking and vibration from the rutted gravel roads has worn out the contacts in the bottom of the DIAD.
This causes the connection to be intermittent, which in turn causes the orange lights to flash on and off which eventually causes my DIAD to crash, forcing me to continually have to reboot it.
The lock on the side of the cradle has already filled up with dust and grime, making it impossible to use. And due to cost cutting, we have no spare DIADS left.
Since the old DIAD holder has been removed, the only way for me to keep my DIAD from crashing is to fold up a delivery notice and put it in the bottom of the cradle in order to break the connection and turn off the map nav program (which was functionally useless anyway.)
This is a case study in what happens when people in cubicles who have never delivered a package in their lives are allowed to order equipment that they will never have to use themselves.