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I think on the 08 bikes the alarm is wired into the horn as well as the lights. If so, a comparison of the wiring diagram for an 08 bike compared to an earlier model might offer a useful answer.I dont know where you would find such wiring diagrams however.
i got the alarm with the pager option. it was plug and play. i can't see your schematic that well, but what will happen to the alarm circuitry when you use the horn? any chance it may fry?
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