Whelen strongly advises using heat-shrink or waterproof butt splices for any connections made outside the climate-controlled cabin.
Typically a pair of brown wires routed directly to the siren speaker (supports one or two 100-watt speakers). cencom gold wiring diagram
A wire spliced into the factory horn wire, allowing the driver to change siren tones by pressing the steering wheel. Whelen strongly advises using heat-shrink or waterproof butt
Wiring a complex emergency vehicle system requires precision to prevent electrical fires and ensure reliability in life-or-death situations. cencom gold wiring diagram