I'm trying to install a GSM/GPS tracker on a BMW F800ST 2008. Tracker GPS303g model: http://www.coban.net/html/2013/12/26...346071832.html Tracker Manual: http://www.slideshare.net/pvfera/gps...-manual-130920 Wiring Diagram: The wiring is rather complex since it's for cars as well, but I think I'll use only: Power +- (Red and Black) - connected directly to the battery Alarm siren (Pink) - connected to the motorcycle horn ACC (White) - connected to the ignition (?? not sure where ??) My questions are: Where can I connect the ACC? Maybe to the headlights line would work since the headlights go on after the ignition is started (don't know where this is though)? Or is there a better place? If anyone has connected anything to the horn, could use some pointers where this connection can be made. Any information would be appreciated. Thanks!