Backup sensor fault with radar detector install?!?!?

So has anyone installed a K40 or Escort 9500ci in their 15' M4 or M3? I had a K40 installed first and then when issues popped up had the 9500 installed. Same issue with both units. As soon as the Laser shifter are turned on, when the car is put into reverse (6 MT) I get an error and the backup sensors do not work. The camera still does but not the sensors that make it beep. As soon as the laser shifters are unplugged everything works again. The Shop that did the install called Escort and they said they have had a few complaints of the same or similar issues and are going to get a BMW from a Dealer to work on a firmware update.



Has anyone else had this issue?



Also, anyone know of anyone who codes in Florida?



Thanks in advance for any help.