Page 8 of 16 SA-441-10 Installation and Operating Instructions
11/1/19 CP5203A
ELECTRICAL CONNECTIONS - Amplifier
Electrical connections to the amplifier are made using a terminal block plug located on the amplifier. A
label on the unit identifies each terminal function. You should install the plug on the unit before wiring.
If the unit needs service the plug can be easily removed without unwiring. The power supply of the
unit must be capable of delivering peak currents up to 50 amps for adequate short circuit protection
and reliable operation. The preferred source is directly at the vehicle battery. The amplifier is fused
near connector.
Attach leads by stripping 3/8", inserting into connector and clamp by tightening screw. Make sure the
screw is tight and the wire can't be pulled out.
Failure to adequately tighten the screw can result in improper operation or burning the con-
nector and wire.
Wire Size and Termination - The diagram shows the minimum wire size used for each connection,
along with recommended lead color. If the wire is longer than 10 ft. use the next larger wire size. The
power lead pairs can be extended with single #10 AWG lead wire. Use only high quality crimp con-
nectors for installation on the vehicle.
Optional Radio Input Connection - Connect one lead to each terminal of the radio speaker or output
connector. The input is isolated and polarity is not important. May need to set RADIO VOLUME AD-
JUST on side of amplifier.
ELECTRICAL CONNECTIONS – Control Head
All control head leads can be extended with #22 AWG or larger lead wire.
Black: Negative - Connect to same ground or negative supply as amplifier.
Red: Positive - May be connected to +VDC supply. It is recommended that the lead be connected to
the accessory output of the fuse block. This provides additional protection of a fused input to the
control head.
Yellow: Lights - This lead may be connected to the dash lights or to the red power lead. Connecting
to the dash lights will turn on the panel lights whenever the dash lights are on. When connected to the
red lead, make sure that the ignition switch controls the power to that connection. This prevents the
panel lights from being continuously on.
White: Control - Connect white leads from amplifier and control head. Route this lead away from the
transmitter antenna lead to prevent R.F. interference being fed to the siren amplifier.
Green: Auxiliary Input - Used for Siren control. Performs same function as Siren button. Connect to
a normally open switch or to horn ring circuit. Circuit may connect to either positive or negative. When
connected to horn ring circuit, use a SPDT switch to connect horn ring to either vehicle horn or to
manual control circuit.
NOTE: Permanent disconnection of the vehicle horn is NOT recommended.
NOTE: Be sure to cut lead short if not used and insulate with electrical tape.
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