I'm attempting to install a BMW Nav IV unit on my new 2012 R1200RT. Everything has been easy except one step. The instructions say to work the power / audio connectors from the dash opening down to the connectors on the bike harness under the steering head. I've attempted to find a path through the fairing behind the headlights for over 6 hours without success. Has anyone successfully accomplished this feat and have any guidance or tips? My dealer is 2 hours away and getting into the service department on weekends will be tough (and expensive). If fairing disassembly is the only way to accomplish the job, where can I find guidance?