I installed my auto dim mirror today, it was easy. I hope I used the correct green/black wire. Anyway, I was going through the shop manual I have looking at the electrical diagrams and comparing them to the car. I found lots of options I wish were available here in the states. The fuses for the power slide doors are in the under hood fuse box, why? I would love to know if there is a single wiring harness for all 5s or is it different for manual/auto, Sport/Touring/Grand touring? How much is the BCM upgradeable, or would you have to replace it for certain options? I would love to talk with an engineer.