This item is a diagnostic cable mainly used by BMW technicians that also can provide a switch power source for electrical items (such as aux lights) use. Works well with all CANBUS based BMW motorcycles.
Installation is simple - just plug into the on-board GPS port and use one of the cables as switched power source. Please note that while this item is plugged in, no other items (such as say, a GPS) can be plugged into the on-board GPS port. Additionally, while it is possible to power items from this cable, it's strongly recommended that it be used for switch power notification only.