Please upload a picture of your dash/MMI system, it ensures we send the right harness and software. Installation is actually pretty easy, but when you first see the wiring harness, you’ll be intimidated. We ran about 4 hours to figure out the first one, and get the unit working, our best techs are down to about two hours to remove a test unit and refit another, harness included. Watch the videos-on this site and also on YouTube. Each Westnav-tech device will arrive ready to be installed for your exact car/model, you should not need to debug or search for your particular SW/AMI or MMI version. We have local North American support and can talk you through exactly what to do. Email/text and phone.