You can enable this by coding with VCDS/OBDeleven, but it won't work with accuracy (position memory) unless the mirror motor and the door controllers both support memory position. If you can do a scan of your controller part #s with VCDS/OBDeleven that will at least tell you if you've got the needed controllers. Also, VCDS/OBDeleven have the capability of looking at whether the mirror position is being registered. If so, you'd be good to go. If not, you'd need to upgrade the mirror motor to the one that supports memory. It would likely also involve adding additional wiring and pins to the loom.