Looking at the wiring on my 2016 TriGlide and the security siren seems to be 12v triggered by a signal from the BCM (Body Control Module). I'm wondering if the trigger voltage is 12v, can the trigger signal just operate a 12v relay connected to the main bike horn?
This would then use the main bike horn for both functions. Might have to install diodes to prevent confusing signals, but it should be a lot cheaper than the $100 security horn! (I did the radio shack pezio horn mod to my 03 Roadking, but was not impressed with the horn volumn at all.)
Just need info on the trigger voltage from the BCM, any help would be appreciated!