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Anyone have DIY on installing AIR HORNS to an alarm?
Audio, Security, & Automotive LightingTroubleshoot wiring problems and get equipment suggestions all in one place. Now expanded to include Automotive Lighting
use bosch style 30A relay - siren output to coil positive, other end to ground, relay contact to horn compressor positive, other relay contact to battery positive, compressor negative to ground - that's it!