Couldn't seem to find a post specifically addressing this so i figured i'd post it up. I have a 2013 Mini Cooper S that has already has a navigation package. It looks like the previous owner put in aftermarket tweeters as well in the a pillars. I am interested in swapping over to a Harmon Kardon factory setup but wondering what is all required and if it can be done without modifying the harness. Let me know your thoughts on this! Thanks