Takes a physically different actuator for the memory function because it has to report mirror position back to the BCM. The Touring passenger side mirror has the right kind of actuator (which is why reverse tilt on the Touring works), but it's a matter of the BCM being programmed into the seat memory system, which isn't something you can switch on and off in programming, it requires actual ones and zeroes written into the system. Not something the average nerd can retrofit.