Wiring Harness Connections

ELECTRICAL CONNECTIONS

Disconnect vehicle battery before making any electrical connections.

Electrical connections to the amplifier are made using the wiring harness supplied. If the amplifier needs service the connector can be easily removed without unwiring the harness. The power supply for the amplifier 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. A fuse on the unit protects from overload.

Wire Size and Termination - The diagram shows the minimum wire size used for each connection. If the wire is longer than 10 ft. use the next larger wire size. Use only high quality crimp connectors for installation on the vehicle.

Negative Connection (Black) - Connect to negative battery connector or high current buss.

Positive Connection (Red) - Connect to positive battery connector or high current buss. A power relay may be used.

Speaker Connection (Brown) - Both leads must be used. Connect 1 lead to each terminal or lead of the speaker.

Optional Radio Input Connection (Blue) - Connect 1 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 ADJUST inside the unit.

Optional Auxiliary Input Connection (White) - The Auxiliary Input allows an external source to activate the Siren push button function. The diagram shows a horn ring connection example. Activated by positive or negative input. NOTE: Permanent disconnection of the vehicle horn is NOT recommended.

BAT

#14 AWG RED Extend with #12

#14 AWG BLK Extend with #12

(2) #18 AWG BRN

RADIO

(2)#18 AWG BLU Connect to output jack, terminals or speaker of radio

AUX

#18 AWG WHT

CP3886

CABLE

	Added
	SPDT
	Switch
HORN
RING	HORN
SWITCH
	AUX
HORN RING
CONNECTION

	WHITE TO AUX
	SIREN SWITCH	BLUE TO TWO
		BLUE TO TWO
	RED TO +VDC	WAY RADIO SPKR
	BROWN	BLACK TO -VDC
	TO SPKR	BLACK TO -VDC
	TO SPKR

TB0328B

Page 4 of 7

10/18/03

SA-450-80, SA-450-80 14V specifications

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