I am adding a siren to my 2003 WRX and was looking for input on wiring. I am confused where to get these power connections:
Red Lead: Connect the red wire from the amplifier to positive 12VDC. It is strongly recommended that you connect to a 12VDC source that is present only when the vehicle ignition is in the on position. A power relay may also be used. Be sure to use a minimum size #16 AWG wire.
Yellow lead: Connect to +12VDC through a switched power supply (possibly iginition). This will turn the siren on and off. Be sure to use a minimum size #18AWG wire
Orange Lead: This lead supplies power for the backlighting of the siren. Connect it to +12VDC from the dash lights, parking lights or other switched source. Be sure to use a minimum size #18AWG wire.
Could these all be taken from the same source? What would be the best place to pull power off for these wires? I could use any help you guys could give.