If you would have done a search you would have found out that all the things you did are in the search plus you could have called homelink and they would have walked you through the procedure and you wouldn't have all the trouble you encountered.
cheers
vern

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2012 335iA Blk. Sapphire- Sport-Blk. Dakota Leather/Red-Brushed Alum.Trim-DAP-PP-CWP Rear View Camera-BMW Asst w/Enhanced BT&USB-High Gloss Blk.Trim Hghight-PSP-Speed Limit Info-Tech. Pkg-PDC-Rear Manual Sun Shades-SAT-Variable Sport Steering-Wheel Locks- Rubber Matts-Euro Del 5/14/12-Redelivery 7/16/12 2006 X3 3.0iA 4/6 Silver Gray Metallic-Black Leather-Nav-PP-SP-Xenon Headlights-PDC-Heated Front Seats-Privacy Glass-Servotronic Steering-Premium Sound System-R R R- Wheel Locks- Rubber Matts