Ok, cost estimates range from $2000-$8500. The transmission, controller and adapters cost the most. The transmission cost can be lowered if good sources are available. Controller and adapters are fixed costs. The plug and play harness is worth the cost. Making a harness saves money but time is added. His guide is good. I would need to watch the video a few more time to pick up on the technical and programming stuff.

__________________
'06 X5 3.0i - bought @143,123 miles (12/26/20)